Oceanus Dragon

hits creature — 2,298 cards in the game can cause this.

1. Jalira, Master Polymorphist — Jalira, Master Polymorphist can put Oceanus Dragon onto the battlefield from your library
2. Kethek, Crucible Goliath — Kethek, Crucible Goliath can put Oceanus Dragon onto the battlefield from your library
3. Polymorph — Polymorph can put Oceanus Dragon onto the battlefield from your library
4. Birthing Ritual — Birthing Ritual can put Oceanus Dragon onto the battlefield from your library
5. Industrial Advancement — Industrial Advancement can put Oceanus Dragon onto the battlefield from your library
6. Killer Instinct — Killer Instinct can put Oceanus Dragon onto the battlefield from your library
7. Arthur, Marigold Knight — Arthur, Marigold Knight can put Oceanus Dragon onto the battlefield from your library
8. Proteus Staff — Proteus Staff can put Oceanus Dragon onto the battlefield from your library
9. Synthetic Destiny — Synthetic Destiny can put Oceanus Dragon onto the battlefield from your library
10. Divergent Transformations — Divergent Transformations can put Oceanus Dragon onto the battlefield from your library
11. Mass Polymorph — Mass Polymorph can put Oceanus Dragon onto the battlefield from your library

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

a Dragon attacks — 474 cards in the game can cause this (Oceanus Dragon is one).

When Oceanus Dragon attacks:

1. Silumgar, the Drifting Death — shrinks a creature by -1/-1
2. Utvara Hellkite — makes a token
3. The Ur-Dragon — draws you that many cards
4. Atarka, World Render — grants double strike
5. Kolaghan, the Storm's Fury — gives +1/+0
6. Invasion of Tarkir // Defiant Thundermaw — deals 2 damage
7. Ojutai, Soul of Winter — taps a creature, artifact, enchantment, planeswalker or battle an opponent controls
8. Dromoka, the Eternal — puts a counter on a permanent

a Dragon deals combat damage — 474 cards in the game can cause this (Oceanus Dragon is one).

When Oceanus Dragon deals combat damage:

1. Parapet Thrasher — triggers
2. Broodcaller Scourge — puts a permanent onto the battlefield
3. Zurgo and Ojutai — triggers

a nontoken Dragon enters the battlefield — 484 cards in the game can cause this (Oceanus Dragon is one).

When Oceanus Dragon enters:

1. Lathliss, Dragon Queen — makes a token
2. Miirym, Sentinel Wyrm — makes a token

a Dragon enters the battlefield — 524 cards in the game can cause this (Oceanus Dragon is one).

When Oceanus Dragon enters:

1. Dragon Tempest — deals damage
2. Bloomvine Regent // Claim Territory — gains you 3 life
3. Sarkhan, Dragon Ascendant — puts a +1/+1 counter on itself
4. Ganax, Astral Hunter — makes a token
5. Scourge of Valkas — deals damage
6. Bladewing's Thrall — returns itself from the graveyard
7. Sarkhan, Soul Aflame — copies a permanent
8. Teeming Dragonstorm — triggers
9. Corroding Dragonstorm — triggers
10. Roiling Dragonstorm — triggers

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

a creature becomes tapped — 565 cards in the game can cause this (Oceanus Dragon is one).

When a creature becomes tapped thanks to Oceanus Dragon:

1. Stinging Licid — deals 2 damage
2. Gideon's Avenger — puts a +1/+1 counter on itself
3. Lust for War — deals 3 damage
4. Insolence — deals 2 damage
5. Seizures — deals 3 damage
6. Betrayal — draws you 1 card
7. Spirit Shackle — puts a counter on a permanent
8. Palliation Accord — puts a palliation counter on itself
9. Cryoshatter — kills a creature
10. Don't Move — kills a creature

11 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 (Oceanus Dragon is one).

When Oceanus Dragon 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

115 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 (Oceanus Dragon is one).

When Oceanus Dragon attacks:

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

190 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 (Oceanus Dragon is one).

1. Tide of War — When Oceanus Dragon blocks, Tide of War sacrifices a creature

27 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 (Oceanus Dragon is one).

When Oceanus Dragon 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

301 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 (Oceanus Dragon is one).

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

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