Game patch 26.20Data Dragon 16.20.1

Reference patch 16.20.1

Janna Support · Normal Draft

Janna has an established low-income Support plan with useful lane pressure, protection, engage or team utility.

Primary roleStandard Summoner's Rift preparation

Historical referenceRecommendation review pending

These patches track recommendation review, build validation and item lookup separately. Updating item data does not complete a build review.

Recommendation patch: 16.16 Data Dragon
Build validation patch: 16.19.1 Data Dragon
Item lookup patch: 16.20.1 Data Dragon

Normal Draft · Support

Reviewed Janna protection Support

Follow the completed-item order as a pre-game reference. Components and owned items do not create extra inventory slots.

Primary role

Draft / Ranked opening · separate from item 1

World Atlas

400 gold

Starts Support income and progresses into wards.

Free quest choice

Dream Maker

400 gold

Provides the free protection-focused Support quest choice.

First item

Moonstone Renewer

2,200 gold

Adds a reviewed part of this champion and role core.

Boots

Boots of Swiftness

1,000 gold

This is the most-supported Boots choice in the frozen prior-patch public role snapshot; change it when the opposing damage or crowd control calls for a different defence.

Core utility

Redemption

2,300 gold

Provides a long-range team heal for spread fights.

Team utility

Shurelya's Battlesong

2,200 gold

Helps nearby allies start or leave a fight.

Flexible

Mikael's Blessing

2,300 gold

Adds a reviewed part of this champion and role core.

Complete build choices

Choose the route before play

Recommendation review pending

AlternativeToo much healingApply anti-heal only when repeated healing is materially changing fights.

View full route

Best when: Apply anti-heal only when repeated healing is materially changing fights.

Free quest choiceDream Maker
First itemMoonstone Renewer
BootsBoots of Swiftness
Morellonomicon
Team utilityShurelya's Battlesong
FlexibleMikael's Blessing

AlternativeTeam gets burstLocket gives nearby allies an immediate shield when enemy burst lands together.

View full route

Best when: Locket gives nearby allies an immediate shield when enemy burst lands together.

Free quest choiceDream Maker
First itemMoonstone Renewer
Locket of the Iron Solari
Core utilityRedemption
Team utilityShurelya's Battlesong
FlexibleMikael's Blessing

Recommendation review pending

Runes and summoner spells

Runes and summoner spellsJannaSupport

Protect the lane partner and keep enough mana for the next trade.

Normal Draft

Primary tree

Sorcery

Summon Aery

Manaflow Band

Transcendence

Scorch

Secondary tree

Resolve

Bone Plating

Revitalize

Summoner spells

Flash

Exhaust

Coordinate the Bot pair

Check which defensive spell the Bot partner selected before duplicating Heal, Barrier or Exhaust.

Match the lane threat

Exhaust answers a committed damage dealer; Ignite adds pressure and anti-heal; Heal protects both nearby partners.

Static alternatives

Compare the problem before changing the plan

These choices are not selected from live scores. Use one only after you identify the stated match problem yourself.

Only when enemy healing is deciding fights

Oblivion Orb

Oblivion Orb supplies healing reduction without committing to a completed Morellonomicon. Skip both when healing is not the problem or an ally already covers your target reliably. Healing reduction does not reduce shields.

Conditional component, not a core item. Complete Morellonomicon only when its stats and slot efficiency justify delaying another purchase.

Team gets burst

Locket of the Iron Solari

Locket gives nearby allies an immediate shield when enemy burst lands together.

Situational AP purchase

When should you buy anti-heal?

Buy healing reduction when enemy healing or regeneration is deciding fights and you can keep damaging the relevant target. Grievous Wounds reduces healing; it does not reduce shields, magic damage or crowd control.

Start with the component

Oblivion Orb can provide healing reduction without immediately paying for a completed Morellonomicon. Fit the component around your core damage, mana and survival needs; check the current queue's item tooltip.

Finish when it fits the fight

Complete Morellonomicon when its stats and slot efficiency suit your build. Do not treat it as a mandatory first item just because your champion deals magic damage.

Coordinate coverage

Multiple Grievous Wounds sources do not add their percentages together. Another reliable applier may cover the same target, but you may still need your own source for a separate fight or target.

Repeated spell damage and damage over time can maintain coverage more reliably than a single hit. Match the purchase to your actual spell access, enemy sustain and the teammates who can apply the debuff.

Will the fight last long enough?

If you die before dealing damage, you apply no healing reduction. If your target dies before healing, there is little healing to prevent. The debuff applies on qualifying damage immediately; it does not need to build up. It remains briefly after your last hit, so teammates can benefit even after you disengage.

Only healing during the active debuff counts. For example, 40% reduction prevents 80 of a 200-point heal, or 400 of a 1,000-point heal, before other modifiers. Compare that with the damage, penetration or survival you delayed; neither example guarantees a kill. Healing after the debuff expires is unaffected.

See the Oblivion Orb and Morellonomicon references for current effects and queue availability. These are situational decisions, not a measured best-build claim.

Kit reference

Janna abilities

Ability names, descriptions and numeric fields come from Riot Data Dragon. Practical reads are independently written; the current in-game tooltip remains authoritative.

Abilities Data Dragon 16.20.1Cooldown / Cost / Range Data Dragon 16.20.1

Passive

Tailwind

What it doesJanna's allies gain Move Speed moving towards her. Janna deals a portion of bonus Move Speed as bonus magic damage on hit and with Zephyr.

Practical readTailwind is an automatic part of the kit involving damage. Track when its condition is active instead of treating every fight the same way.

Q ability

Howling Gale

What it doesBy creating a localized change in pressure and temperature, Janna is able to create a small storm that grows in size with time. She can activate the spell again to release the storm. On release this storm will fly towards the direction it was cast in, dealing damage and knocking away any enemies in its path.

Practical readHowling Gale contributes damage. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.

Cooldown14 secCost90/95/100/105/110Listed range1075 units

W ability

Zephyr

What it doesJanna summons an air elemental that passively increases her Move Speed and enables her to pass through units. She may also activate this ability to deal damage and slow an enemy's Move Speed.

Practical readZephyr contributes a slowing effect and damage. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.

Cooldown8/7.5/7/6.5/6 secCost50/55/60/65/70Listed range4294967295 units

E ability

Eye Of The Storm

What it doesJanna conjures a defensive gale that shields an ally champion or turret from incoming damage and increases their Attack Damage.

Practical readEye Of The Storm creates setup or area pressure. Place it where the opponent must choose between entering its space, changing route or giving up the immediate contest.

Cooldown16/15/14/13/12 secCost70/75/80/85/90Listed range800 units

Protection

The protection or sustain is part of the cast's value. Compare its timing with incoming damage rather than reading only the offensive effect.

Ultimate

Monsoon

What it doesJanna surrounds herself in a magical storm, throwing enemies back. After the storm has settled, soothing winds heal nearby allies while the ability is active.

Practical readMonsoon contributes protection or sustain. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.

Cooldown130/115/100 secCost100Listed range725 units

Adapt the plan

What to do when the game changes

Judge the whole lane or map state, not only personal kills. Choose the situation closest to the current game.

Even plan

Balance lane pressure with protection for the carry

Lane

Hold the ability that makes opponents respect your lane and trade when both Bot-lane partners are ready.

Map play

Recall and move on safe wave timings; an unsupported roam can cost the carry an entire wave or a dive.

Fights

Control one approach and keep enough protection for the enemy's most likely engage.

Pings, movement and objectives

Janna Support map plan

Keep the carry connected to safe space. Signal danger early enough to prevent the fight, not after protection is already late.

Ahead

Make the lead open the map

Ping: Use On My Way before changing angle, then Assist Me on Dragon after Bot is safe to move. Use Danger if the carry starts following through an unsafe route.
Map movement: Roam after a pushed wave, shared recall or when the carry can collect safely. Deep wards still require the Jungler or another nearby ally.
Objective: Arrive early, clear the enemy entrance and hold the key engage or peel spell. Do not chase away from Dragon and hand the opponent a free route back in.

Even

Create one clear numbers advantage

Ping: Use On My Way before an engage or roam, Enemy Missing as soon as a lane opponent disappears, and Danger when your carry cannot follow.
Map movement: Leave only on a safe wave or recall timing. If the carry would lose a full wave or face a dive, stay Bot and communicate that you are not moving.
Objective: Help Bot finish the wave, then enter river with the Jungler. Set vision before starting and avoid turning an even objective into an unseen gamble.

Behind

Stop the next loss before seeking a play

Ping: Use Retreat or Danger before an ally enters darkness, Enemy Missing immediately, and Assist Me when you need company to restore defensive vision.
Map movement: Do not abandon a crashing wave or vulnerable carry. Move after the wave is stable and use the nearest safe ward line rather than forcing deep vision.
Objective: If your team cannot enter river safely, ping Retreat and trade for farm, vision or another map resource. Contest only after creating a safe route together.

Objective setup

Four calls, in order

Pings create a shared plan; they do not replace checking waves, vision and who can move.

1
Before the move
Around a minute before Dragon, ping the plan, spend gold if needed and make sure Bot and Mid know whether they can move.
2
Enter together
Walk with the Jungler or another ally. Sweep one route, place useful entrance vision and never face-check alone.
3
Before starting
Check nearby waves and enemy positions. Hold the spell that either starts a reachable fight or protects your main damage dealer.
4
During the contest
Keep enemies away from the safe entrance, mark the reachable threat and avoid chasing so far that Dragon is left unprotected.

Later objectives: Use the same pattern for Rift Herald or Baron: communicate first, move through controlled vision with an ally, then choose engage or peel before the fight begins.

Use the guide

Put Janna into a real matchup

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