Captain Kirk, Boldly Going

a Human enters the battlefield — 2,624 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going enters:

1. Heronblade Elite — puts a +1/+1 counter on itself
2. Kyler, Sigardian Emissary — puts a +1/+1 counter on itself
3. Thalia's Lieutenant — puts a +1/+1 counter on itself
4. Champion of the Parish — puts a +1/+1 counter on itself
5. Captain of the Mists — untaps itself
6. Beregond of the Guard — gives +1/+1
7. Dawnhart Disciple — gets +1/+1
8. Lossarnach Captain — taps a creature an opponent controls

a creature attacks — 9,882 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Screaming Swarm — mills a card
4. Imperious Mindbreaker — mills a card
5. Staff of Titania — makes a token
6. Glory Bearers — gives +0/+1
7. Saw — sacrifices a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Super-Soldier Serum — triggers
10. Throwing Knife — sacrifices itself

98 other cards care about it too. These are the ones with the most connections.

anything attacks — 9,882 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Surgical Suite // Hospital Room — puts a counter on a creature
3. Madame Web, Clairvoyant — mills a card
4. Apothecary White — makes a token
5. Bonny Pall, Clearcutter — draws you 1 card
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Toph, Earthbending Master — puts a counter on a permanent
10. Dyadrine, Synthesis Amalgam — triggers

44 other cards care about it too. These are the ones with the most connections.

a creature blocks — 9,882 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going blocks:

1. Barrow-Blade — strips abilities
2. Favor of the Woods — gains you 3 life
3. Gift of the Woods — gives +0/+3
4. Noble Stand — gains you 2 life
5. Noxious Assault — puts a counter on a permanent
6. Battle Cry — gives +0/+1
7. Ferocity — puts a counter on a permanent
8. Dead-Iron Sledge — kills a creature
9. Dwindle — kills a creature
10. Shield of the Righteous — triggers

6 other cards care about it too. These are the ones with the most connections.

a nontoken creature attacks — 9,882 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going attacks:

1. Basri Ket — makes a token
2. Militia's Pride — makes a token

a creature deals combat damage — 9,882 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

1. Antagonist Incorporator — When Captain Kirk, Boldly Going deals combat damage, Antagonist Incorporator makes a token

123 other cards care about it too. These are the ones with the most connections.

a creature is cast — 9,920 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going is cast:

1. Primeval Bounty — makes a token
2. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
3. Summon: Fenrir — it arrives with counters thanks to Summon: Fenrir
4. Torens, Fist of the Angels — makes a token
5. God-Eternal Oketra — makes a token
6. Silk, Web Weaver — makes a token
7. Selvala, Eager Trailblazer — makes a token
8. Silverback Elder — triggers
9. Oltec Matterweaver — triggers
10. Pure Reflection — kills a Reflection

59 other cards care about it too. These are the ones with the most connections.

a nontoken creature enters the battlefield — 10,129 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going enters:

1. Samwise Gamgee — makes a token
2. Dual Nature — makes a token
3. Angelic Sell-Sword — makes a token
4. Arni, Humble Scribe — untaps itself
5. Lonis, Cryptozoologist — triggers

22 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 10,967 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

When Captain Kirk, Boldly Going enters:

1. Ray Fillet, Wave Warrior — puts a counter on itself
2. Legolas Greenleaf — puts a counter on a permanent
3. Aetherstorm Roc — puts a counter on a permanent you control

205 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 15,547 cards in Captain Kirk's colors can cause this (Captain Kirk is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Captain Kirk, Boldly Going enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

24 other cards care about it too. These are the ones with the most connections.