mtg.wtf

Other Merfolk you control get +1/+1.

Flying
When Merfolk Skydiver enters the battlefield, put a +1/+1 counter on target creature you control.
{3}{G}{U}: Proliferate.

Flash
When Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn.

When Merfolk Tunnel-Guide enters the battlefield, you get a three-time boon with "Whenever one or more Merfolk enter the battlefield under your control, target Merfolk creature you control explores."

Flying
Whenever Merfolk Windrobber deals combat damage to a player, that player mills a card.
Sacrifice Merfolk Windrobber: Draw a card. Activate only if an opponent has eight or more cards in their graveyard.

Reach
Domain — When Meria's Outrider enters the battlefield, it deals damage to each opponent equal to the number of basic land types among lands you control.

Reach
Domain — When Meria's Outrider enters the battlefield, it deals damage equal to the number of basic land types among lands you control to any target.

Tap an untapped nontoken artifact you control: Add {G}.
Tap two untapped nontoken artifacts you control: Exile the top card of your library. You may play it this turn.

Whenever one or more Halflings you control attack a player, create a Food token.

Other Merfolk creatures you control get +1/+1.
Whenever you cast a Merfolk spell, you may tap or untap target permanent.

When Merry Bards enters the battlefield, you may pay {1}. When you do, create a Young Hero Role token attached to target creature you control.

Haste
Merry, Esquire of Rohan has first strike as long as it's equipped.
Whenever you attack with Merry and another legendary creature, draw a card.

Flying
When Mesa Cavalier enters the battlefield, you gain 2 life.

As long as it's not your turn, Mesa Lynx gets +0/+2.

Lifelink

Counter target spell with mana value 3 or less.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

When Mesmerizing Benthid enters the battlefield, create two 0/2 blue Illusion creature tokens with "Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."
Mesmerizing Benthid has hexproof as long as you control an Illusion.

Enchant creature
When Mesmerizing Dose enters the battlefield, tap enchanted creature, then proliferate.
Enchanted creature doesn't untap during its controller's untap step.

As Metallic Mimic enters the battlefield, choose a creature type.
Metallic Mimic is the chosen type in addition to its other types.
Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.

Improvise
Counter target spell unless its controller pays {3}.

Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value.
{3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.

When Metalspinner's Puzzleknot enters the battlefield, you draw a card and you lose 1 life.
{2}{B}, Sacrifice Metalspinner's Puzzleknot: You draw a card and you lose 1 life.

This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control.
Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.