Tranquil Cove [Kaldheim Commander]

Tranquil Cove [Kaldheim Commander]Set: Kaldheim Commander Type: Land Rarity: Common Tranquil Cove enters the battlefield tapped. When Tranquil Cove enters the battlefield, you gain 1 life. {T}: Add {W} or {U}.

then blood

Set: Multiverse Legends Type: Legendary Creature — Phyrexian Elf Warrior Rarity: Mythic Cost: {2}{G}{U} Whenever a creature with power 2 or less enters the battlefield under your control

Set: Dominaria United Type: Creature — Merfolk Wizard Rarity: Rare Cost: {1}{U}{U} Kicker {1}{R} and/or {1}{G}

Touma never met a door he didn't hate

Set: POP Series 5 Type: Fire Rarity: Rare Retreat cost: Colorless

Urzan mechanist

where X is the number of Praetors you have showing from among your hand

Set: Unfinity Type: Creature — Human Employee Rarity: Uncommon Cost: {2}{U}{U} When Monitor Monitor enters the battlefield

Set: Commander Legends: Battle for Baldur's Gate Prerelease Promos Type: Instant Rarity: Mythic Cost: {X}{R}{R}{R} When you cast your next instant or sorcery spell this turn

but a process

Challenge 1

A living fossil active after eons of dormancy