Verified for patch 16.8.1

Summon

Adds a unit to the field — temporary or permanent. Covers ability summons (turrets, pets, Mega Meeps), trait-spawned minions and relics (Shepherd's Bia/Bayin, Bulwark relic, Primordian Swarmlings), resurrect/revive of fallen allies, and bench-to-field arrivals (Thresh's Lantern pulling a benched unit). Summon-buff augments scale these. Bench-slot expansion is the separate `bench` mechanic; an exact copy of an existing unit is the separate `clone` mechanic.

Also known as: summons, summoned, summon a, summon the, spawn a, spawns, benched unit, onto the battlefield, resurrect, revive

What enables Summon

Champions (7)

  • 3 Diana On the Menu 
    Passive: Attacks deal 50 / 75 / 130 Ability Power bonus magic damage.

Active: Gain 225 / 275 / 375 Ability Power Shield and summon 3 encircling orbs for 3 seconds. Orbs deal ? Ability Power magic damage to enemies they pass through, and rotate faster based on Attack Speed.
  • 3 Fizz On the Menu 
    Dash through the current target, dealing ? Ability Power magic damage. Every third cast also summons a Mega Meep after a delay, briefly knocking the target up and dealing ? Ability Power magic damage. Adjacent enemies take 50% damage.

Meep Bonus: Add ? Meep to the bait, increasing Mega Meep damage by ? Ability Power.
  • 4 LeBlanc On the Menu 
    Passive: Attacks deal ? Ability Power magic damage instead.

Active: Summon 5 clones that attack alongside for 5 attacks, dealing 25 / 25 / 150% damage. For their final attack, clones fire a bolt that deals 70 / 105 / 750 Ability Power magic damage.
  • 4 Nunu & Willump On the Menu 
    Gain 475 / 575 / 2000 Ability Power Shield for 4 seconds. Summon an astrolabe to crash down on a nearby hex, dealing 120 / 180 / 2000 Ability Power magic damage to enemies within 2 hexes. Then, push the astrolabe towards the end of the board, dealing 100 / 150 / 2000 Ability Power magic damage. All enemies hit by the astrolabe are knocked up for 1.75 / 2 / 8 seconds.
  • 5 Bard On the Menu 
    Summon a flying saucer over the current target that lasts 4 seconds. Each second it deals 220 / 330 / 3000 Ability Power magic damage to the target, plus 135 / 205 / 1500 Ability Power magic damage split between all enemies within 1 hex. The saucer deals 30% increased damage to Tanks.

If an enemy under the UFO dies, Bard has a 15 / 20 / 100% chance to abduct them and create a 1-star copy on your bench.

Meep bonus: On combat start, grant the nearest ? Meeple allies an additional Meep.
  • 5 Blitzcrank On the Menu 
    Passive: Every 2 / 2 / 0.5 seconds, call down a bolt on the highest Health nearby enemy that deals 60 / 90 / 150 Ability Power magic damage.

Active: Summon a disco ball at the largest clump of enemies, then knock up the current target into it, dealing 150 / 225 / 999 Ability Power magic damage. They crash down into the disco ball, dealing 175 / 265 / 5000 Ability Power magic damage in a three hex radius. Enter The Groove for 1 second per enemy hit.
  • 5 Jhin On the Menu 
    Passive: Jhin has a fixed attack speed of 0.9 / 0.9 / 1.4 and converts every 1% of bonus Attack Speed into 0.75 bonus Attack Damage.

Active: Summon 4 spectral hands that fire alongside Jhin for the next 4 attacks. Each hand deals ? Attack Damage physical damage per shot. The final shots deal 244% more damage and pierce through the most enemies in a line, dealing 44% reduced damage per target hit.

Traits (4)

  • Bulwark On the Menu 
    Summon a placeable relic. At the start of combat, it grants adjacent allies a 10% max Health shield and 10% Attack Speed.
  • Meeple On the Menu 
    Meeple attract Meeps that empower Meeple abilities in meepy ways. They also gain bonus Health.

(3) 2, 100
(3) 2, 100
(3) 2, 100. Create a Cloning Slot on your bench. Gain gold and a 1-star copy of the champion placed there when cloning completes.
(3) 2, 100. SUMMON THE FOUR MEEPLORDS!

Cloning time = Champion cost
  • Primordian On the Menu 
    (2) Dealing damage spawns Swarmlings based on unique Primordian star level.
(2) Spawn 45% more Swarmlings! After each player combat, gain a random 1 or 2-cost champion. 

8% of damage taken contributes to damage dealt.
  • Shepherd On the Menu 
    Shepherds summon the Bond of the Stars to aid them in battle.

(?) Summon Bia
(?) Summon Bayin
(?) Bia and Bayin's bond grows deeper

Bia and Bayin's power are increased by the total star level of all Shepherds.

Artifacts (3)

  • Shadow Puppet On the Menu
    • +10 Armor
    • +10 MR
    • +10% AS

    Spawn a clone that copies the holder's items. The clone has 60% max Health and deals 40% damage. [Unique - only 1 per champion]

  • Thresh's Lantern On the Menu
    • +400 HP
    • +25 Armor
    • +25 MR

    After 6 seconds of combat, pull the leftmost benched unit onto the battlefield. While that unit lives, 20% of all damage the holder would take is redirected to them. Traits of champions flung onto the board do not become active

  • Trickster's Glass On the Menu
    • +10 Armor
    • +10 MR
    • +10% AS
    • +15% Crit

    Summon a clone with 70% base Health and +10% max Mana. You cannot equip items to the clone. The clone benefits from active traits [Unique - only 1 per champion]

Anima items (1)

  • Tentacle Slam On the Menu
    • +150 HP

    Every 5 seconds, summon a tentacle that slams down on the target, dealing ? physical damage and healing the holder for 12% max health. Illaoi Bonus: If this item is equipped on Illaoi, an additional tentacle slams targets drained by her ability at 35% effectiveness. Damage increases based on Stage.