Game patch 26.20Data Dragon 16.20.1
Reference patch 16.20.1
Zac is normally played Jungle and does not currently have a reviewed Mid route. Mid usually needs solo-lane safety plus wave control, roaming or reliable burst pressure. Treat this as a deliberate experiment, not a standard recommendation.
Unestablished routeStandard Summoner's Rift preparationThese patches track recommendation review, build validation and item lookup separately. Updating item data does not complete a build review.
Unreviewed route
Zac is normally played Jungle and does not currently have a reviewed Mid route. Mid usually needs solo-lane safety plus wave control, roaming or reliable burst pressure. Treat this as a deliberate experiment, not a standard recommendation.
A different lane's items are not relabelled as correct. Role income, map access and starting rules can change the whole purchase order.
Champion guide JungleRunes and summoner spells
Use repeated combat after controlling the Mid wave, then keep Flash for the short lane's frequent gank and roam angles.
Precision
Conqueror
Triumph
Legend: Alacrity
Last Stand
Resolve
Bone Plating
Overgrowth
Flash
IgniteIgnite supports a short kill window; Teleport supports recall and map timing; Barrier protects against immediate burst.
A more aggressive spell pair does not replace safe wave timing, river vision or an escape route.
Static alternatives
These choices are not selected from live scores. Use one only after you identify the stated match problem yourself.
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.Situational AP purchase
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.
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.
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.
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.
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
Ability names, descriptions and numeric fields come from Riot Data Dragon. Practical reads are independently written; the current in-game tooltip remains authoritative.
What it doesEach time Zac hits an enemy with an ability, he sheds a chunk of himself that can be reabsorbed to restore Health. Upon taking fatal damage, Zac splits into 4 bloblets that attempt to recombine. If any bloblets remain, he will revive with an amount of Health depending on the Health of the surviving bloblets. Each bloblet has a percentage of Zac's maximum Health, Armor and Magic Resistance. This ability has a 5 minute cooldown.
Practical readCell Division is an automatic part of the kit involving damage. Track when its condition is active instead of treating every fight the same way.
This effect references a maximum-health value. Check whether the current tooltip uses the caster's or the target's health before comparing damage or protection.
What it doesZac stretches an arm, grabbing an enemy. Attacking a different enemy will cause him to throw both targets towards each other.
Practical readStretching Strikes is part of Zac's Q pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
What it doesZac explodes outward towards nearby enemies, dealing a percentage of their maximum health as magic damage.
Practical readUnstable Matter contributes damage. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
This effect references a maximum-health value. Check whether the current tooltip uses the caster's or the target's health before comparing damage or protection.
What it doesZac attaches his arms to the ground and stretches back, launching himself forward.
Practical readElastic Slingshot is part of Zac's E pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
What it doesZac bounces four times, knocking up enemies hit and slowing them.
Practical readLet's Bounce! contributes a slowing effect. Its value changes with cooldown, range and target access; recognise the setup before moving into its effective area.
Adapt the plan
Judge the whole lane or map state, not only personal kills. Choose the situation closest to the current game.
Push safely, then threaten vision, a side lane or the enemy jungle without abandoning free farm.
Reach river first with your Jungler and preserve the cooldown needed if the opponent contests.
Pressure a valuable target while respecting the control that can end your lead.
Trade when your key ability and minion position favour you; an even lane does not require a forced solo kill.
Move on a completed wave and return before several waves are lost to the tower.
Position for the champion's reliable damage or control instead of beginning with the lowest-percentage spell.
Use range, tower space and vision. Do not contest every last hit if it opens another kill.
Ping missing early and take the safe route; blindly matching a stronger roam can lose two positions.
Group around your most dependable control and damage rather than searching alone for a comeback.
Pings, movement and objectives
Mid can reach either side, but the wave pays for every move. Communicate the opponent first, then move only when the route and destination are credible.
Pings create a shared plan; they do not replace checking waves, vision and who can move.
Push, catch or communicate the wave before leaving so the opponent does not gain a free move and free income.
Use On My Way for the route you are actually taking and Danger where an unseen opponent may arrive.
Move through controlled vision with the Jungler or another ally instead of face-checking the objective alone.
Decide whether you are engaging, front-lining, flanking or protecting a carry before the fight begins.
Later objectives: Repeat the same process around later major objectives: handle nearby income, communicate the route, enter through vision and agree on the fight before committing.
Use the guide
Compare a specific opponent, return to the champion overview, or choose another champion without losing the queue distinction.