Biophagus

: Add one mana of any color. If that mana is spent to cast a non-Human creature spell, that creature enters with an additional +1/+1 counter on it.

: Add one mana of any color. Spend this mana only to cast a creature spell.

Whenever you cast your first Human creature spell each turn, that creature enters with an additional +1/+1 counter on it for each Dog and/or Wolf you control.

: Add one mana of any color.

: Add one mana of any color.

: Exile target card from a graveyard.

You may cast Dinosaur creature spells from among cards you own exiled with this creature. If you cast a spell this way, that creature enters with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

Haste

: Add one mana of any color. Spend this mana only to cast a creature spell.

: Add one mana of any one color. Spend this mana only to cast a creature spell.

Whenever you cast a creature spell that doesn't share a creature type with a creature card in your library, draw a card.