Copy

(This token can be used to represent a token that's a copy of a permanent.)

Blood

{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.

{2}, {T}, Sacrifice this token: You gain 3 life.

White spells you cast cost {1} less to cast.
Blue spells you cast cost {1} less to cast.
Spells your opponents cast cost {1} more to cast.

{2}, Sacrifice this artifact: Draw a card.

You don't lose unspent green mana as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each unspent green mana you have.