Enter the Infinite

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Take an extra turn after this one. Exile Temporal Trespass.

All creatures get -2/-2 until end of turn.

Affinity for snow lands (This spell costs less to cast for each snow land you control.)

When this creature enters, artifacts and creatures target opponent controls don't untap during that player's next untap step.

Return three snow lands you control to their owner's hand: Return this creature to its owner's hand.

Trample

This creature enters tapped.

Cumulative upkeep—Sacrifice a land. (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.)

Target player gains X life.

When you unlock this door, destroy all creatures with power 3 or greater.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)