If a player would draw a card, instead they draw a card and reveal it. If it's a creature card, that player discards it unless they pay 3 life.

, : Create a 0/1 colorless Prism artifact creature token.
Sacrifice a Prism token: Add one mana of any color.

As an additional cost to cast this spell, sacrifice a green creature.
Search your library for a green creature card, put it onto the battlefield, then shuffle.

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Flying
When this creature dies, exile it if it had a death counter on it. Otherwise, return it to the battlefield under your control and put a death counter on it.

Counter target spell. If an artifact or creature spell is countered this way, put that card onto the battlefield under your control instead of into its owner's graveyard.

If damage would be dealt to this creature, put that many -1/-1 counters on it instead.
At the beginning of your upkeep, remove a -1/-1 counter from this creature.

This creature can't be destroyed by lethal damage unless lethal damage dealt by a single source is marked on it.

Trample
At the beginning of your upkeep, if you don't control a creature named Keeper of Kookus, this creature deals 3 damage to you and attacks this turn if able.
: This creature gets +1/+0 until end of turn.

Trample
At the beginning of your upkeep, put a +1/+1 counter on each creature each opponent controls.

, Sacrifice a creature: Return this card from your graveyard to the battlefield. Activate only during your upkeep.

Flying, trample
Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Flying
: This creature gets +1/+0 until end of turn.
: This creature gets +0/+1 until end of turn.

Flying, vigilance