Lingyun, Scientific Genius

Flash, Defender, Bolster 2
Other Wizards you control get +1/+1. Walls you control get +0/+2
Whenever an opponent casts a spell, draw a card.
If this ability has already resolved this turn,
bolster 1, then create a treasure token.
{2}{t}, Sacrifice the creature with the
least toughness among creatures you control:
Lingyun, Scientific Genius deals X damage to
any target, where X is the toughness of the sacrificed creature.