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Creatures can't block.

Counter target spell.

At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice this enchantment, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.

Sacrifice a creature: This enchantment deals 1 damage to any target.

Whenever a player plays a land, that player draws a card.

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Whenever a creature deals damage to you, destroy it.

Enchant creature

Enchanted creature gets +2/+0 and has trample.

When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.

Flashback {2 generic}2{red}R (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Shock deals 2 damage to any target.

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

As this enchantment enters, choose a creature type.

Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.)

Prevent all combat damage that would be dealt this turn.

Each attacking creature doesn't untap during its controller's next untap step.

Destroy target creature. It can't be regenerated.

Target player mills half their library, rounded down.

Each player shuffles the cards from their hand into their library, then draws that many cards.