, , Sacrifice this creature: Draw three cards.

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it.

: Exile this creature, then return it to the battlefield face down under its owner's control.
: This creature gets +1/-1 or -1/+1 until end of turn.
Megamorph

This creature can't be blocked.
Threshold — Whenever this creature deals combat damage to a player, draw a card. Then discard a card unless there are seven or more cards in your graveyard.

Flying
Islandcycling

When Shoreline Scout enters, you may exile a Merfolk card or a land card from your hand. If you do, conjure a Tropical Island card into your hand.
As long as another Merfolk or an Island entered the battlefield under your control this turn, Shoreline Scout gets +1/+0.

Flash
Enchant artifact or creature
As long as enchanted permanent is a creature, it gets -3/-0 and loses flying.

Whenever this creature deals combat damage to a player, venture into the dungeon. (Enter the first room or advance to the next room.)

Until end of turn, all creatures gain ": Tap target creature."

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

Exchange control of target artifact you control and target artifact or creature you don't control.

Flying
Whenever this creature deals combat damage to a player, that player mills two cards.

Flying
When this creature enters, return a creature you control to its owner's hand.

Whenever this creature attacks, defending player may pay . If that player doesn't, this creature can't be blocked this turn.

Prowess
Whenever you cast a noncreature spell, you may pay . If you do, target creature gains double strike until end of turn.

Artifact spells you cast cost less to cast.
, : Target artifact you control becomes a copy of a second target artifact you control until end of turn, except it isn't legendary. Activate only as a sorcery.

At the beginning of your upkeep, you may have this creature become the color or colors of your choice. (This effect lasts indefinitely.)

Flying
Whenever Siani attacks, scry X, where X is the number of attacking creatures with flying.
Partner

Flying
Whenever this creature attacks, defending player may draw a card.

When this creature enters, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Flash
Squad
Benediction of the Omnissiah — When this creature enters, draw a card.

When Sicarian Infiltrator enters, draw a card.

When this enchantment enters, draw three cards, then discard two cards.
At the beginning of your end step, if eight or more cards are in your graveyard, transform this enchantment.

Exploit
When this creature exploits a creature, return target creature to its owner's hand.

Draw three cards, then discard a card.

Draw two cards, then discard a card.
If you've cast a spell named Peer Through Depths and a spell named Reach Through Mists this turn, you may search your library for a card named The Unspeakable, put it onto the battlefield, then shuffle.

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.
Rebound

Enchant creature
Whenever enchanted creature deals damage to a player, return target creature that player controls to its owner's hand.