Beast-Caller Shaman

Ability

Genesis Summoning - Standard Action: Put this and 1 or more allied Beast units on the bottom of their owners' decks as materials. If you do, you may special summon a Beast or Warrior from your deck with a level equal to or less than the combined level of the materials.

Genesis summoning is a ritual that materializes something from the caster's memory. The summoned being appears in an idealized form, often making it stronger than its original.