Tatyova, Steward of Tides

a Merfolk deals combat damage — 386 cards in the game can cause this (Tatyova is one).

1. Seafloor Oracle — When Tatyova, Steward of Tides deals combat damage, Seafloor Oracle draws you 1 card

a Merfolk enters the battlefield — 397 cards in the game can cause this (Tatyova is one).

When Tatyova, Steward of Tides enters:

1. Forerunner of the Heralds — puts a +1/+1 counter on itself
2. Deeproot Elite — puts a counter on a Merfolk
3. River Sneak — gets +1/+1

a land it grants abilities to — 1,237 cards in the game can cause this (Tatyova is one).

Tatyova, Steward of Tides gives:

1. Drowner of Truth // Drowned Jungle — flying
2. Skyclave Cleric // Skyclave Basilica — flying
3. Boggart Trawler // Boggart Bog — flying
4. Akoum Warrior // Akoum Teeth — flying

1,233 other cards care about it too. These are the ones with the most connections.

put a land onto the battlefield — 1,560 cards in the game can cause this.

1. Fecund Greenshell — When a land enters thanks to Fecund Greenshell, Tatyova, Steward of Tides turns something into a creature
2. Sunken Palace — When Sunken Palace enters, Tatyova, Steward of Tides turns something into a creature
3. Bonny Pall, Clearcutter — When a land enters thanks to Bonny Pall, Clearcutter, Tatyova, Steward of Tides turns something into a creature
4. Staff of Titania — When a Forest or Dryad enters thanks to Staff of Titania, Tatyova, Steward of Tides turns something into a creature
5. Contaminant Grafter — When a land enters thanks to Contaminant Grafter, Tatyova, Steward of Tides turns something into a creature
6. Kodama of the West Tree — When a land enters thanks to Kodama of the West Tree, Tatyova, Steward of Tides turns something into a creature
7. Bitterthorn, Nissa's Animus — When a land enters thanks to Bitterthorn, Nissa's Animus, Tatyova, Steward of Tides turns something into a creature
8. Sword of the Animist — When a land enters thanks to Sword of the Animist, Tatyova, Steward of Tides turns something into a creature
9. Explorer's Scope — When a land enters thanks to Explorer's Scope, Tatyova, Steward of Tides turns something into a creature
10. Dragon-Cursed Halls — When Dragon-Cursed Halls enters, Tatyova, Steward of Tides turns something into a creature

1,550 other cards cause it too. These are the ones with the most connections.

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

When Tatyova, Steward of Tides attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Grim Javelineer — gives +1/+0
4. Invisible Woman — triggers
5. Caesar, Legion's Emperor — sacrifices a creature
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Banon, the Returners' Leader — draws and discards
10. Toph, Earthbending Master — puts a counter on a permanent

490 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 (Tatyova is one).

When Tatyova, Steward of Tides attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Anim Pakal, Thousandth Moon — puts a +1/+1 counter on itself
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Total War — kills a creature

845 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 (Tatyova is one).

When Tatyova, Steward of Tides 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. Favor of the Woods — gains you 3 life
7. Tide of War — sacrifices a creature
8. Dead-Iron Sledge — kills a creature
9. Dwindle — kills a creature
10. Shield of the Righteous — triggers

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

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

When Tatyova, Steward of Tides attacks:

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

a creature it grants abilities to — 19,392 cards in the game can cause this (Tatyova is one).

Tatyova, Steward of Tides gives:

1. Umara Wizard // Umara Skyfalls — flying
2. Pinnacle Monk // Mystic Peak — flying
3. Blackbloom Rogue // Blackbloom Bog — flying
4. Disciple of Freyalise // Garden of Freyalise — flying
5. Hostile Hostel // Creeping Inn — flying
6. Ojer Kaslem, Deepest Growth // Temple of Cultivation — flying
7. Ojer Taq, Deepest Foundation // Temple of Civilization — flying
8. Kazandu Mammoth // Kazandu Valley — flying
9. Golden Guardian // Gold-Forge Garrison — flying
10. Witch Enchanter // Witch-Blessed Meadow — flying

19,381 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 (Tatyova is one).

When Tatyova, Steward of Tides enters:

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

3,028 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 (Tatyova is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Tatyova, Steward of Tides enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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