Inter-Planar Convoy

Indestructible
Haste
{t}{x}{p/b}- Inter-Planar Convoy is exiled for {x} turns, where {x} is the {p/b} mana needed to execute this ability. For every turn that Inter-Planar Convoy is exiled, add a +1/+1 counter and lifelink to target creature.
Inter-Planar Convoy cannot attack or defend