Colonel Autumn

a Soldier creature enters the battlefield — 778 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

1. Veteran's Armaments — When Colonel Autumn enters, Veteran's Armaments triggers

life is gained — 1,347 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn gains life:

1. South Wind Avatar — makes each opponent lose 1 life
2. Rodolf Duskbringer — grants indestructible
3. Fiendish Panda — puts a +1/+1 counter on itself
4. Veinwitch Coven — brings a card back
5. Cleric Class — puts a counter on a creature
6. Lich's Mastery — draws you that many cards
7. Wall of Limbs — puts a +1/+1 counter on itself
8. MACH-1, Swooping Scoundrel — surveils
9. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers
10. Amalia Benavides Aguirre — kills a creature

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

a creature gets a counter — 1,012 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

1. Omarthis, Ghostfire Initiate — When a creature gets a counter thanks to Colonel Autumn, Omarthis, Ghostfire Initiate puts a counter on a permanent
2. Knighted Myr — When Knighted Myr gets a counter thanks to Colonel Autumn, it grants double strike
3. Emperor of Bones — When Emperor of Bones gets a counter thanks to Colonel Autumn, it blinks a permanent
4. Dreamdrinker Vampire — When Dreamdrinker Vampire gets a counter thanks to Colonel Autumn, it grants menace
5. Fetid Gargantua — When Fetid Gargantua gets a counter thanks to Colonel Autumn, it draws you 2 cards
6. Dusk Legion Duelist — When Dusk Legion Duelist gets a counter thanks to Colonel Autumn, it draws you 1 card
7. Generous Pup — When Generous Pup gets a counter thanks to Colonel Autumn, it puts a counter on a creature
8. Bloodcrazed Hoplite — When Bloodcrazed Hoplite gets a counter thanks to Colonel Autumn, it triggers
9. Constable of the Realm — When Constable of the Realm gets a counter thanks to Colonel Autumn, it flickers a creature, artifact, enchantment, planeswalker or battle an opponent controls

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

a Human enters the battlefield — 1,907 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn enters:

1. General Kudro of Drannith — hits a graveyard
2. Thalia's Lieutenant — puts a +1/+1 counter on itself
3. Champion of the Parish — puts a +1/+1 counter on itself
4. Beregond of the Guard — gives +1/+1
5. Lossarnach Captain — taps a creature an opponent controls

a creature attacks — 6,543 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn attacks:

1. Adaptive Omnitool — searches a library
2. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
3. Chorale of the Void — brings a card back
4. Staff of Titania — makes a token
5. Glory Bearers — gives +0/+1
6. Saw — sacrifices a creature
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Super-Soldier Serum — triggers
10. Throwing Knife — sacrifices itself

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

anything attacks — 6,543 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn attacks:

1. Grim Javelineer — gives +1/+0
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Surgical Suite // Hospital Room — puts a counter on a creature
4. Fire Navy Trebuchet — makes a token
5. Apothecary White — makes a token
6. Clavileño, First of the Blessed — turns something into a creature
7. Adeline, Resplendent Cathar — makes a token
8. Dalkovan Encampment — makes 2 tokens
9. Guide of Souls — triggers
10. Warren Warleader — triggers

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

a creature blocks — 6,543 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Barrow-Blade — strips abilities
3. Noble Stand — gains you 2 life
4. Battle Cry — gives +0/+1
5. Dead-Iron Sledge — kills a creature

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

a nontoken creature attacks — 6,543 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

When Colonel Autumn attacks:

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

a creature it grants abilities to — 7,182 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

Colonel Autumn gives:

1. Captain Jean-Luc Picard — exploit
2. Haliya, Guided by Light — exploit
3. Losheel, Clockwork Scholar — exploit
4. Killian, Decisive Mentor — exploit
5. Liliana the Repentant — exploit
6. Massacre Girl, Most Wanted — exploit

7,175 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 7,459 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

1. Aetherstorm Roc — When Colonel Autumn enters, Aetherstorm Roc puts a counter on a permanent you control

1,227 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 10,830 cards in Colonel Autumn's colors can cause this (Colonel Autumn is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Colonel Autumn enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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