Zac

Arena changes

• I: Cooldown resets every round.
• I: Bloblets are damaged by the Ring of Fire.
• W: Cooldown changed to 6 seconds.
• R: Cell Division healing increase changed to 0.5 to 1.5 3% maximum health.
• R: Healing per chunk Cell Division changed to 5 to 6.5 for 4 of his maximum health.²

• Reverb and Mystic Punch work well with Zac because champions with crowd control in their kits benefit from that combination.³
• Try Circle of Death with a high-healing Zac build; it can be strong enough to be a win condition in some cases.⁴⁵⁶

• Zac can use his mobility and innate healing to reach the Ring of Fire and move around within it.⁷
• Zac can proc crowd control and launch over walls.⁸⁹
• When Zac's passive begins as he takes a portal, his blobs can travel across the map to the revive point.¹⁰¹¹¹²
• Zac's blob interacts with a portal.¹³
• Zac's W works well with rice augments.¹⁴
• Now You See Me can pair with Zac's leaps: after using it to blink away, Zac can leave a portal behind, and opponents may wait at that portal.¹⁵

• Zac's bloblets were affected by the Ring of Fire.¹⁶² Earlier Arena format

Earlier formats

• Zac's passive and Zhonya's can help him survive the Ring of Fire as it closes.¹⁸ 8x2 duos
• Zac's Q could count as four stuns per enemy for Guilty Pleasure, healing nearby allies eight times its value.¹⁹ 8x2 duos
• A Pyke and Zac stall build is a nightmare.²⁰ 8x2 duos
• A Poppy, Alistar, and Zac team could stay safely in the middle of the Ring of Fire.²¹ 8x2 duos
• Zac's passive could help him and a teammate run out the clock during a round.²² 8x2 duos
• Zac and Zaahen could both revive in the Ring of Fire, and Zac's blobs could be damaged while Zaahen revived with full invulnerability.²³²⁴ 8x2 duos
• Zac's crowd control could reset Combo Breaker's counter because he moved between crowd-control effects; the airborne duration shown for Blitzcrank's E did not always match the time Zac could not act.²⁵²⁶ 8x2 duos
• Zac's blobs were burnable earlier, though the Ring of Fire could take a long time to damage them.²⁷²⁸ 8x2 duos
• With all four curses, Zac's W dealt 55% of his maximum health with a 2-second cooldown at 1,500 AP.²⁹ 8x2 duos
• Zac can stack curses by crowd-controlling multiple opponents, healing, and staying near opponents; crowd-controlling several opponents at once helps with curse stacking.³⁰ 8x2 duos
• Slime Time works well with Lightning Rod, and two Zac passives can proc at once.³¹ 8x2 duos