Kenessos, Priest of Thassa

a Merfolk deals combat damage — 310 cards in Kenessos's colors can cause this (Kenessos is one).

1. Seafloor Oracle — When Kenessos, Priest of Thassa deals combat damage, Seafloor Oracle draws you 1 card

a Merfolk enters the battlefield — 319 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa 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

you scry — 221 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa scries:

1. Diviner of Victory // Unwind History — gets +1/+1
2. Celeborn the Wise — makes your creatures bigger
3. Proft, Consulting Detective — puts a +1/+1 counter on itself
4. Matoya, Archon Elder — draws you 1 card
5. Elrond, Master of Healing — puts a counter on a creature
6. Chance-Met Elves — puts a +1/+1 counter on itself
7. Arwen Undómiel — puts a counter on a creature
8. Glorfindel, Dauntless Rescuer — gets +1/+1
9. Galadriel of Lothlórien — puts a land onto the battlefield
10. Elvish Mariner — taps a creature, artifact, enchantment, planeswalker or battle

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

a creature attacks — 6,391 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Screaming Swarm — mills a card
4. Imperious Mindbreaker — mills a card
5. Staff of Titania — makes a token
6. Fractal Harness — puts counters on a permanent
7. Inquisitorial Rosette — makes a token
8. Saw — sacrifices a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Throwing Knife — sacrifices itself

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

anything attacks — 6,391 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Madame Web, Clairvoyant — mills a card
3. Bonny Pall, Clearcutter — draws you 1 card
4. Hazardroot Herbalist — gives +1/+0
5. Ranger Class — puts a counter on a creature
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers
8. Toph, Earthbending Master — puts a counter on a permanent
9. Alora, Merry Thief — triggers
10. Twins of Discord — triggers

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

a creature blocks — 6,391 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa blocks:

1. Barrow-Blade — strips abilities
2. Favor of the Woods — gains you 3 life
3. Gift of the Woods — gives +0/+3
4. Noxious Assault — puts a counter on a permanent
5. Ferocity — puts a counter on a permanent
6. Mammoth Harness — grants first strike
7. Dead-Iron Sledge — kills a creature
8. Dwindle — kills a creature

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

a creature is cast — 6,423 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa is cast:

1. Primeval Bounty — makes a token
2. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
3. Summon: Fenrir — it arrives with counters thanks to Summon: Fenrir
4. Mona Lisa, Ever Adaptable — makes a token
5. Champions of the Perfect — draws you 1 card
6. Masked Admirers — returns itself from the graveyard
7. Primordial Sage — draws you 1 card
8. Oketra's Monument — makes a token
9. Beast Whisperer — draws you 1 card
10. Silverback Elder — triggers

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

a nontoken creature enters the battlefield — 6,528 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa enters:

1. Dual Nature — makes a token
2. Lonis, Cryptozoologist — triggers

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

a creature enters the battlefield — 7,050 cards in Kenessos's colors can cause this (Kenessos is one).

When Kenessos, Priest of Thassa enters:

1. Ray Fillet, Wave Warrior — puts a counter on itself
2. Legolas Greenleaf — puts a counter on a permanent

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

anything enters the battlefield — 10,540 cards in Kenessos's colors can cause this (Kenessos is one).

1. The Earth King — When The Earth King enters thanks to Kenessos, Priest of Thassa, it makes a token
2. Mu Yanling, Wind Rider — When Mu Yanling, Wind Rider enters thanks to Kenessos, Priest of Thassa, it makes a token
3. Ultimecia, Temporal Threat — When Ultimecia, Temporal Threat enters thanks to Kenessos, Priest of Thassa, it taps a creature an opponent controls
4. Spider-Man 2099, Miguel O'Hara — When Spider-Man 2099, Miguel O'Hara enters thanks to Kenessos, Priest of Thassa, it triggers

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