Erstwhile Trooper

a creature is discarded — 206 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper makes a player discard a card:

1. Wharf Infiltrator — makes a token
2. Bone Miser — makes a token
3. Hashaton, Scarab's Fist — makes a token
4. Surly Badgersaur — puts a +1/+1 counter on itself
5. Oskar, Rubbish Reclaimer — brings a card back
6. Conspiracy Theorist — brings a card back
7. Veronica, Dissident Scribe — makes a token
8. Green Goblin, Nemesis — puts a counter on a Goblin

1 other card cares about it too. These are the ones with the most connections.

a Zombie deals combat damage — 657 cards in the game can cause this (Erstwhile Trooper is one).

1. Undead Alchemist — When Erstwhile Trooper deals combat damage, Undead Alchemist mills a card

a Zombie attacks — 657 cards in the game can cause this (Erstwhile Trooper is one).

1. Varina, Lich Queen — When Erstwhile Trooper attacks, Varina, Lich Queen draws you that many cards

a nontoken Zombie enters the battlefield — 661 cards in the game can cause this (Erstwhile Trooper is one).

1. Necroduality — When Erstwhile Trooper enters, Necroduality makes a token

a Zombie enters the battlefield — 795 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper enters:

1. Noxious Ghoul — shrinks a creature by -1/-1
2. Geralf, the Fleshwright — puts counters on a permanent
3. Wayward Servant — makes each opponent lose 1 life
4. Champion of the Perished — puts a +1/+1 counter on itself
5. Mummy Paramount — gets +1/+1
6. Unconventional Tactics — returns itself from the graveyard
7. Binding Mummy — taps a creature or artifact

a Soldier creature enters the battlefield — 1,279 cards in the game can cause this (Erstwhile Trooper is one).

1. Veteran's Armaments — When Erstwhile Trooper enters, Veteran's Armaments triggers

a card is discarded — 2,042 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper makes a player discard a card:

1. Ivora, Insatiable Heir — puts a +1/+1 counter on itself
2. Cool but Rude — deals 2 damage
3. Containment Construct — brings a card back
4. Moonstone, Harsh Mistress — brings a card back
5. Lazotep Chancellor — puts 2 counters on a Zombie or Army
6. Magmakin Artillerist — deals that much damage
7. Inti, Seneschal of the Sun — exiles a card from your library
8. Pitchstone Wall — sacrifices itself
9. Currency Converter — exiles it
10. Hostile Investigator — triggers

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

a card in a graveyard — 7,589 cards in the game can cause this (Erstwhile Trooper is one).

1. Samwise Gamgee — Erstwhile Trooper puts cards into the graveyard that Samwise Gamgee can bring back
2. Bloodbond March — Erstwhile Trooper puts cards into the graveyard that Bloodbond March can bring back
3. Thor, God of Thunder — Erstwhile Trooper puts cards into the graveyard that Thor, God of Thunder can bring back
4. Gale, Waterdeep Prodigy — Erstwhile Trooper puts cards into the graveyard that Gale, Waterdeep Prodigy can bring back
5. Harness the Storm — Erstwhile Trooper puts cards into the graveyard that Harness the Storm can bring back
6. Transplant Theorist — Erstwhile Trooper puts cards into the graveyard that Transplant Theorist can bring back
7. Heart-Shaped Herb — Erstwhile Trooper puts cards into the graveyard that Heart-Shaped Herb can bring back
8. Wayward Angel — Erstwhile Trooper fills your graveyard toward the 7 or more cards Wayward Angel needs
9. Rescue from the Underworld — Erstwhile Trooper puts cards into the graveyard that Rescue from the Underworld can bring back
10. Victimize — Erstwhile Trooper puts cards into the graveyard that Victimize can bring back

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

anything goes to a graveyard — 7,589 cards in the game can cause this (Erstwhile Trooper is one).

When a card hits the graveyard thanks to Erstwhile Trooper:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Planar Void — hits a graveyard
3. Measure of Wickedness — gives an opponent control of itself
4. Energy Field — sacrifices itself

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

anything attacks — 17,934 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers

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

a creature attacks — 17,934 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper attacks:

1. Adaptive Omnitool — searches a library
2. Saw — sacrifices a creature

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

a creature blocks — 17,934 cards in the game can cause this (Erstwhile Trooper is one).

1. Tide of War — When Erstwhile Trooper blocks, Tide of War sacrifices a creature

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

a creature enters the battlefield — 19,800 cards in the game can cause this (Erstwhile Trooper is one).

When Erstwhile Trooper enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Ray Fillet, Wave Warrior — puts a counter on itself
3. The Neutrinos — gets +1/+0
4. Wingnut, Bat on the Belfry — grants flying, haste and menace
5. Aetherstorm Roc — puts a counter on a permanent you control
6. Raphael, Most Attitude — exiles a card from your library

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

anything enters the battlefield — 26,499 cards in the game can cause this (Erstwhile Trooper is one).

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

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