Cass, Hand of Vengeance

put an Aura into a graveyard — 46 cards in Cass's colors can cause this.

1. Flamespeaker's Will — When Flamespeaker's Will is in the graveyard, Cass, Hand of Vengeance can bring it back
2. Ordeal of Purphoros — When Ordeal of Purphoros is in the graveyard, Cass, Hand of Vengeance can bring it back
3. Ordeal of Heliod — When Ordeal of Heliod is in the graveyard, Cass, Hand of Vengeance can bring it back
4. Mortal Obstinacy — When Mortal Obstinacy is in the graveyard, Cass, Hand of Vengeance can bring it back
5. Shifting Shadow — When Shifting Shadow is in the graveyard, Cass, Hand of Vengeance can bring it back
6. Compulsory Rest — When Compulsory Rest is in the graveyard, Cass, Hand of Vengeance can bring it back
7. Instill Furor — When Instill Furor is in the graveyard, Cass, Hand of Vengeance can bring it back
8. Street Sweeper — Street Sweeper puts cards into the graveyard that Cass, Hand of Vengeance can bring back
9. Path to Redemption — When Path to Redemption is in the graveyard, Cass, Hand of Vengeance can bring it back
10. Uneasy Alliance — When Uneasy Alliance is in the graveyard, Cass, Hand of Vengeance can bring it back

36 other cards cause it too. These are the ones with the most connections.

an Aura enters the battlefield — 455 cards in Cass's colors can cause this (Cass is one).

1. Nurturing Presence — When Nurturing Presence enters thanks to Cass, Hand of Vengeance, it makes a token
2. Pain for All — When Pain for All enters thanks to Cass, Hand of Vengeance, it deals its power damage

anything leaves a graveyard — 693 cards in Cass's colors can cause this (Cass is one).

When an Aura leaves a graveyard thanks to Cass, Hand of Vengeance:

1. Quintorius, Field Historian — makes a token
2. Garrison Excavator — makes a token
3. Quintorius, History Chaser — makes a token
4. Hardened Academic — puts a counter on a creature
5. On Wings of Gold — makes a token
6. Owlin Historian — gets +1/+1
7. Spirit of Resilience — puts a +1/+1 counter on itself
8. Fuming Effigy — deals 1 damage
9. Spirit Mascot — puts a +1/+1 counter on itself
10. Kirol, History Buff // Pack a Punch — becomes prepared

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

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

When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

When Cass, Hand of Vengeance attacks:

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

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

1. Antagonist Incorporator — When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

When Cass, Hand of Vengeance is cast:

1. Summon: Brynhildr — grants haste
2. God-Eternal Oketra — makes a token
3. Oltec Matterweaver — triggers
4. Pure Reflection — kills a Reflection

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

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

When Cass, Hand of Vengeance 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 Cass's colors can cause this (Cass is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Cass, Hand of Vengeance 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.