When Jungleborn Pioneer enters, create a 1/1 blue Merfolk creature token with hexproof. (It can't be the target of spells or abilities your opponents control.)
When Jadelight Ranger enters, it explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard. Then repeat this process.)
When Bishop of Binding enters, exile target creature an opponent controls until Bishop of Binding leaves the battlefield.Whenever Bishop of Binding attacks, target Vampire gets +X/+X until end of turn, where X is the power of the exiled card.
DeathtouchAscend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)Whenever Deadeye Brawler deals combat damage to a player, if you have the city's blessing, draw a card.
Deathtouch, Reveal Tetzimoc, Primal Death from your hand: Put a prey counter on target creature. Activate only during your turn.When Tetzimoc enters, destroy each creature your opponents control with a prey counter on it.
As an additional cost to cast this spell, discard a card.Draw two cards and create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")
FlashWhen Swift Warden enters, target Merfolk you control gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)Snubhorn Sentry gets +3/+0 as long as you have the city's blessing.
When Form of the Dinosaur enters, your life total becomes 15.At the beginning of your upkeep, Form of the Dinosaur deals 15 damage to target creature an opponent controls and that creature deals damage equal to its power to you.
When Aquatic Incursion enters, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.): Target Merfolk can't be blocked this turn.
Whenever a creature you control enters, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the creature, then put the card back or put it into your graveyard.)