Ethercaste Knight

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Flying

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Defender (This creature can't attack.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

First strike

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Protection from black (This creature can't be blocked, targeted, dealt damage, or enchanted by anything black.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)