Unsettled Mariner [Modern Horizons]

Unsettled Mariner [Modern Horizons]Set: Modern Horizons Type: Creature Shapeshifter Rarity: Rare Cost: {W}{U} Changeling (This card is every creature type.) Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {1}. The call of the sea shapes many souls.

Set: Sun & Moon: Crimson Invasion Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

Set: The Brothers' War Commander Type: Artifact Rarity: Uncommon Cost: {1} {T}: Target player exiles a card from their graveyard

Set: Zendikar Rising Promos Type: Enchantment Rarity: Rare Cost: {3}{W} Landfall — Whenever a land enters the battlefield under your control

and cleanse the world of our enemies

other creatures you control get +2/+2

Eomer deals damage equal to its power to any target

Set: Sun & Moon: Guardians Rising Type: Grass Rarity: Secret Rare Retreat cost: Colorless

Set: Commander Legends: Battle for Baldur's Gate Type: Artifact Rarity: Rare Cost: {4} Whenever a creature enters the battlefield

Target spell's controller exiles it with X delay counters on it

This must be one of the ancient keys to… No

28) emerging from under the ground where he was buried

put a +1/+1 counter on Predator Ooze