Mobilize 2
Whenever you sacrifice a permanent, the topmost creature card in your library perpetually gets +1/+1.
Illustrated by Filip Burburan · Alchemy: Tarkir · #20
There are no rulings for Dalkovan Outrider.
Whenever you sacrifice a nontoken permanent, exile the top card of your library.
During your turn, as long as you've sacrificed a nontoken permanent this turn, you may play cards exiled with this creature.
, Sacrifice a land: Add .
Menace
When this creature enters, choose a creature card in your hand without blitz. It perpetually gains blitz. The blitz cost is equal to its mana cost.
Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)
Flying
Whenever you sacrifice another permanent, this creature gets +1/+0 until end of turn.
Whenever a player sacrifices a permanent, this creature deals 1 damage to any target.
Whenever one or more creatures you control deal combat damage to a player, create a Treasure token.
Sacrifice a Treasure: Exile the top card of your library. You may play that card this turn.
Mobilize 1 (Whenever this creature attacks, create a tapped and attacking 1/1 red Warrior creature token. Sacrifice it at the beginning of the next end step.)
Whenever a creature token you control leaves the battlefield, draw a card if it was attacking. Otherwise, each opponent loses 1 life.