Conjuro
Busca en tu biblioteca una carta de tierra básica, ponla en el campo de batalla girada y luego baraja tu biblioteca. Fortalece 1. (Elige la criatura con menor resistencia entre las criaturas que controlas y pon un contador +1/+1 sobre ella.)
You determine which creature to put counters on as the spell or ability that instructs you to bolster resolves.
Bolster itself doesn’t target any creature, though some spells and abilities that bolster may have other effects that target creatures. For example, you could put counters on a creature with protection from white with Abzan Skycaptain’s bolster ability.