Rem Karolus, Stalwart Slayer

damage is prevented — 411 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer has damage prevented:

1. Phyrexian Vindicator — deals that much damage
2. Selfless Squire — puts that many +1/+1 counters on itself
3. Samite Ministration — gains you that much life
4. Judgment of Alexander — deals its power damage

a Knight enters the battlefield — 335 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer enters:

1. Brimstone Trebuchet — untaps itself
2. Zhalfirin Lancer — gets +1/+1

a Human enters the battlefield — 2,042 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer enters:

1. Thalia's Lieutenant — puts a +1/+1 counter on itself
2. Champion of the Parish — puts a +1/+1 counter on itself
3. Erkenbrand, Lord of Westfold — gives +1/+0
4. Beregond of the Guard — gives +1/+1
5. Théoden, King of Rohan — grants double strike
6. Vigilante Justice — deals 1 damage
7. Lossarnach Captain — taps a creature an opponent controls

a creature attacks — 6,550 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer attacks:

1. Adaptive Omnitool — searches a library
2. Anim Pakal, Thousandth Moon — puts a +1/+1 counter on itself
3. Staff of Titania — makes a token
4. Saw — sacrifices a creature
5. Ultima Weapon — kills a creature an opponent controls
6. Path of Mettle // Metzali, Tower of Triumph — triggers
7. Total War — kills a creature
8. The Spear of Leonidas — triggers
9. Super-Soldier Serum — triggers
10. Norin the Wary — flickers itself

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

anything attacks — 6,550 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Surgical Suite // Hospital Room — puts a counter on a creature
3. Apothecary White — makes a token
4. Guide of Souls — triggers
5. Banon, the Returners' Leader — draws and discards
6. Three Dog, Galaxy News DJ — sacrifices an Aura
7. Inti, Seneschal of the Sun — triggers
8. Gut, True Soul Zealot — sacrifices a creature or artifact
9. Cool but Rude — draws and discards
10. Swashbuckler Extraordinaire — sacrifices a Treasure

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

a creature blocks — 6,550 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer blocks:

1. Barrow-Blade — strips abilities
2. Heat of Battle — deals 1 damage
3. Battle Strain — deals 1 damage
4. Noble Stand — gains you 2 life
5. Battle Cry — gives +0/+1
6. Tide of War — sacrifices a creature
7. Dead-Iron Sledge — kills a creature

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

a nontoken creature attacks — 6,550 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer attacks:

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

a creature deals combat damage — 6,550 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

1. Antagonist Incorporator — When Rem Karolus, Stalwart Slayer deals combat damage, Antagonist Incorporator makes a token

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

a creature is cast — 6,572 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer is cast:

1. Summon: Brynhildr — grants haste
2. God-Eternal Oketra — makes a token
3. Oketra's Monument — makes a token
4. Quest for the Holy Relic — puts a quest counter on itself
5. Bontu's Monument — makes each opponent lose 1 life
6. Oltec Matterweaver — triggers
7. Pure Reflection — kills a Reflection
8. Bygone Bishop — triggers
9. Flickering Hound — flickers a creature you control
10. Hazoret's Monument — draws and discards

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

a creature enters the battlefield — 7,303 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

When Rem Karolus, Stalwart Slayer enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Gimli of the Glittering Caves — puts counters on a permanent
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

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

anything enters the battlefield — 10,759 cards in Rem Karolus's colors can cause this (Rem Karolus is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Rem Karolus, Stalwart Slayer enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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