[2 TIX] Whenever you cast a spell, this creature gets +x/+x until end of turn, where X is the amount of generic mana in that spell's mana cost.
[3 TIX] Hexproof
[2 TIX] 4/2 (Power and toughness are adjusted to this.)
[4 TIX] 6/6 (Power and toughness are adjusted to this.)