Phantasmal Mount
{1}{U}
Creature -- Illusion Horse
1/1
Flying
{T}: Target creature you control with toughness 2 or less gets +1/+1 and gains flying until end of turn. When ~this~ leaves the battlefield this turn, sacrifice that creature. When the creature leaves the battlefield this turn, sacrifice ~this~.
War Barge
{4}
Artifact
{3}: Target creature gains islandwalk until end of turn. When ~this~ leaves the battlefield this turn, destroy that creature. A creature destroyed this way can't be regenerated. (A creature with islandwalk can't be blocked as long as defending player controls an Island.)