Dog companionship

Enchant creature gets +X/+X and then x2/x2; this creature then has Haste, indestructible and vigilance.
If X is 10-20 create X 4/4 Clown with lifelink and Reach
{g}{g}{5},{t}: If X is 21 or more enchant creature has +X/+X again and then x2/x2
X is the amount of cards in your graveyard or/and your hand
{u}{g}{g}{1},{t}: Up to three target creature's get +X/+X where X is the amount of Blue and/or green permanents in your hand and/or battlefield