Door of Destinies

As this artifact enters, choose a creature type.

Creatures you control of the chosen type get +1/+1.

Whenever you cast a creature spell of the chosen type, draw a card.

As this artifact enters, choose a creature type. This artifact enters with a fellowship counter on it for each creature you control of the chosen type.

Creatures you control of the chosen type get +1/+1 for each fellowship counter on this artifact.

Flash

As this artifact enters, choose a creature type.

Creatures you control of the chosen type get +1/+1.

This creature enters with three +1/+1 counters on it for each spent to cast it.

When this creature enters, choose up to two other target creatures you control. For each spent to cast this creature, put a +1/+1 counter on each of them.

Changeling (This card is every creature type.)

As this creature enters, choose a creature type.

Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

Vigilance (Attacking doesn't cause this creature to tap.)

As this creature enters, choose a color.

Whenever you cast a spell of the chosen color, put a +1/+1 counter on this creature.