Put target permanent on top of its owner's library.
Investigate.

Flying
At the beginning of your end step, you may pay . When you do, target player mills X cards, where X is the number of Shrines you control.

Flying
When this creature becomes the target of a spell or ability, sacrifice it.

(Gain the next level as a sorcery to add its ability.)
Whenever a creature you control enters, surveil 1.
: Level 2
Whenever you attack, target attacking creature with power 3 or less can't be blocked this turn.
: Level 3
Whenever a creature you control deals combat damage to a player, you may exile it, then return it to the battlefield under its owner's control.

Gain control of target monocolored creature.
Forecast — , Reveal this card from your hand: Target creature becomes the color or colors of your choice until end of turn.

You have no maximum hand size.

As an additional cost to cast this spell, sacrifice a creature.
Enchant creature
You control enchanted creature.
Enchanted creature gets +1/+1.

Other blue creatures you control get +1/+1.
: Target artifact creature becomes blue until end of turn.
Tap an untapped blue creature you control: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.

Whenever you cast a noncreature spell, counter that spell. Create a number of 1/1 blue Merfolk creature tokens equal to the amount of mana spent to cast that spell.

Whenever Gran-Gran becomes tapped, draw a card, then discard a card.
Noncreature spells you cast cost less to cast as long as there are three or more Lesson cards in your graveyard.

You may reveal a noncreature card you own from outside the game and put it into your hand.

Landfall — Whenever a land you control enters, tap target creature an opponent controls and put a stun counter on it.

Put target creature on top of its owner's library.
Flashback

Return up to two target creatures to their owner's hand.
Search your library and/or graveyard for a card named Jace, Ingenious Mind-Mage, reveal it, and put it into your hand. If you searched your library this way, shuffle.

Vigilance
Whenever this creature attacks, you may tap another untapped creature you control. If you do, this creature can't be blocked this turn.

Scry X, where X is the amount of spent to cast this spell, then draw three cards. ( is mana from a snow source.)

Creatures with flying get +2/+0.
Creatures without flying get -2/-0.

Whenever you draw your second card each turn, choose one —
• Target creature gains flying until end of turn.
• Tap target creature.

Devoid
Flying
Whenever this creature attacks, you may pay . If you do, another target creature gains flying until end of turn.

This creature can't be blocked unless defending player controls three or more creatures that share a creature type.

This creature can't be blocked.
This creature gets +2/+0 as long as you control a commander that's a creature or planeswalker.

Whenever a creature you control becomes blocked, you may return it to its owner's hand.
Whenever one or more creatures you control deal combat damage to a player, draw a card.

Whenever you attack, recruit.
Crew 2

When this creature enters, untap up to seven lands.

: Greater Morphling gains your choice of banding, bushido 1, double strike, fear, flying, first strike, haste, landwalk of your choice, protection from a color of your choice, provoke, rampage 1, shadow, or trample until end of turn.
: Greater Morphling becomes the colors of your choice until end of turn.
: Greater Morphling becomes the creature type of your choice until end of turn.
: Greater Morphling's expansion symbol becomes the symbol of your choice until end of turn.
: Greater Morphling's art becomes by the artist of your choice until end of turn.
: Greater Morphling gets +2/-2 or -2/+2 until end of turn.
: Untap Greater Morphling.

Aberrant Tinkering — When this creature enters and at the beginning of your upkeep, each Horror you control gains all activated abilities of target artifact an opponent controls until end of turn. You may spend blue mana as though it were mana of any color to activate those abilities.

Flash
When this creature enters, scry 1.

Whenever this creature becomes tapped, exile the top three cards of target opponent's library face down.
You may look at cards exiled with this creature.
, Sacrifice this creature: Turn all cards exiled with this creature face up. Counter all spells with those names.

Counter target spell unless its controller exiles all cards from their graveyard.
Draw a card.