Seifer, Balamb Rival

a Human enters the battlefield — 1,280 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival enters:

1. Erkenbrand, Lord of Westfold — gives +1/+0
2. Vigilante Justice — deals 1 damage

anything attacks — 6,499 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Grim Javelineer — gives +1/+0
3. ED-E, Lonesome Eyebot — puts a quest counter on itself
4. Fire Navy Trebuchet — makes a token
5. Misty Mountains Raider — puts 2 counters on a Goblin or Army
6. Razorkin Hordecaller — makes a token
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

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

a creature attacks — 6,499 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Chorale of the Void — brings a card back
4. Ingris Stingerquill — deals 1 damage
5. Staff of Titania — makes a token
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. Total War — kills a creature
10. The Spear of Leonidas — triggers

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

a creature blocks — 6,499 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Barrow-Blade — strips abilities
4. Heat of Battle — deals 1 damage
5. Battle Strain — deals 1 damage
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 creature deals combat damage — 6,499 cards in Seifer's colors can cause this (Seifer is one).

1. Hive Mind Coprocessor — When Seifer, Balamb Rival deals combat damage, Hive Mind Coprocessor makes you lose life

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

a creature is cast — 6,529 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival is cast:

1. Endrek Sahr, Master Breeder — makes that spell's mana value tokens
2. Summon: Brynhildr — grants haste
3. Oketra's Monument — makes a token
4. Bontu's Monument — makes each opponent lose 1 life
5. Vanquisher's Banner — draws you 1 card
6. Sarkhan's Unsealing — deals 4 damage
7. Skittering Horror — sacrifices itself
8. Skittering Skirge — sacrifices itself
9. Skittering Monstrosity — sacrifices itself
10. Hazoret's Monument — draws and discards

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

a nontoken creature enters the battlefield — 6,736 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival enters:

1. Minion Reflector — makes a token
2. Molten Echoes — makes a token
3. Flameshadow Conjuring — makes a token
4. Mirror March — flips a coin

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

a creature enters the battlefield — 7,209 cards in Seifer's colors can cause this (Seifer is one).

When Seifer, Balamb Rival enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Gimli of the Glittering Caves — puts counters on a permanent
3. Wingnut, Bat on the Belfry — grants flying, haste and menace
4. Ayara, First of Locthwain — makes each opponent lose 1 life
5. Blasting Station — untaps itself
6. General Kreat, the Boltbringer — deals 1 damage
7. Raphael, Most Attitude — exiles a card from your library
8. Mogg Bombers — sacrifices itself
9. Flame-Kin War Scout — sacrifices itself
10. Monkey Cage — sacrifices itself

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

anything enters the battlefield — 10,466 cards in Seifer's colors can cause this (Seifer is one).

1. Vial Smasher, Gleeful Grenadier — When Seifer, Balamb Rival enters, Vial Smasher, Gleeful Grenadier deals 1 damage

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