Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Flash
Drag Below — When this creature enters, tap it and up to one target creature an opponent controls. They don't untap during their controllers' next untap steps.

Return target permanent card with mana value 3 or less from your graveyard to the battlefield. If this spell was cast from a graveyard, you may copy this spell and may choose a new target for the copy.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature you control fights target creature the opponent to your left controls. Then that player may copy this spell and may choose new targets for the copy.

(: Add or .)
This land enters tapped.
Cycling (, Discard this card: Draw a card.)

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)
Equipped creature gets +1/-1.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

As this land enters, you may reveal an Elemental card from your hand. If you don't, this land enters tapped.
: Add .
, : Target creature gains haste until end of turn.

Flash
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, tap up to four target permanents.

This creature gets +1/+1 as long as you control a Mountain.
: This creature gains haste until end of turn. (It can attack and this turn.)

: Target land becomes a Plains or an Island until end of turn.

(: Add .)

: Add .
, : Put a storage counter on this land.
, Remove X storage counters from this land: Add X mana in any combination of and/or .

Enchant creature
When this Aura enters, put a +1/+1 counter on target creature you control.
Enchanted creature gets -1/-1.

Return target creature to its owner's hand.
Draw a card.

Put target creature into its owner's library second from the top. Its controller gains 3 life.

When Dogmeat enters, mill five cards, then return an Aura or Equipment card from your graveyard to your hand.
Whenever a creature you control that's enchanted or equipped attacks, create a Junk token. (It's an artifact with ", Sacrifice this token: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")

This creature attacks each combat if able.

Flying
This creature enters tapped.
This creature doesn't untap during your untap step.
Whenever you become the target of a spell, you may untap this creature.

, Exile this artifact: Add . When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Draw a card.