Rivals of Ixalan

When Forerunner of the Heralds enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle your library and put...

Destroy target artifact or enchantment.

Whenever Raging Regisaur attacks, it deals 1 damage to any target.

{3}{B}{G}: Return Jungle Creeper from your graveyard to your hand.

Put two +1/+1 counters on each creature you control.

Destroy target creature with flying.

Enrage — Whenever Overgrown Armasaur is dealt damage, create a 1/1 green Saproling creature token.

When Jadecraft Artisan enters the battlefield, target creature gets +2/+2 until end of turn.

When Jade Bearer enters the battlefield, put a +1/+1 counter on another target Merfolk you control.

As long as it's your turn, Hardy Veteran gets +0/+2.

Giltgrove Stalker can't be blocked by creatures with power 2 or less.

When Forerunner of the Heralds enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on...

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Target creature gets +1/+1 until end of turn. Draw a card.

Enrage — Whenever Overgrown Armasaur is dealt damage, create a 1/1 green Saproling creature token.

Destroy target artifact or enchantment.

Flash When Swift Warden enters the battlefield, target Merfolk you control gains hexproof until end of turn. (It can't be the target of spells or a...

{1}, Sacrifice Thrashing Brontodon: Destroy target artifact or enchantment.

Enrage — Whenever Cacophodon is dealt damage, untap target permanent.

Dinosaur spells you cast cost {2} less to cast.

Giltgrove Stalker can't be blocked by creatures with power 2 or less.

Enrage — Whenever Siegehorn Ceratops is dealt damage, put two +1/+1 counters on it. (It must survive the damage to get the counters.)

Other Merfolk you control get +1/+1.