Callous Survivalist

Warcry - Each time a unit or Relic Weapon with Warcry attacks, it grants a permanent bonus to the top-most unit or weapon in your deck. Even if it's a few cards down, you'll get to stack up the bonuses on it over multiple turns.

Bond - When played, you may exhaust another unit of the same type to reduce this card’s cost by the exhausted unit’s strength.