Choose three. You may choose the same mode more than once. • Search your library for a Cave card, put it onto the battlefield tapped, then shuffle. • Put three +1/+1 counters on a Cave you control. It becomes a 0/0 Elemental creature with haste. It's still a land. • Destroy target enchantment.
Choose one — • Remove X time counters from target permanent or suspended card. • Put X time counters on target permanent with a time counter on it or suspended card.
Oddly, an unstable time stream makes wizards want to tinker with it even more.
This spell costs {U} less to cast for each instant and sorcery spell you've cast this turn. Whenever Demilich attacks, exile up to one target instant or sorcery card from your graveyard. Copy it. You may cast the copy. You may cast Demilich from your graveyard by exiling four instant and/or sorcery cards from your graveyard in addition to paying its other costs.
Strive — This spell costs {2}{B} more to cast for each target beyond the first. Any number of target creatures each get +1/+0 and gain lifelink until end of turn.
When Exemplar of Strength enters the battlefield, put three -1/-1 counters on target creature you control. Whenever Exemplar of Strength attacks, remove a -1/-1 counter from it. If you do, you gain 1 life.
Double strike When Drizzt Do'Urden enters the battlefield, create Guenhwyvar, a legendary 4/1 green Cat creature token with trample. Whenever a creature dies, if it had power greater than Drizzt's power, put a number of +1/+1 counters on Drizzt equal to the difference.
Target opponent reveals the top seven cards of their library. You may cast an instant or sorcery spell from among them without paying its mana cost. Then that player puts the rest into their graveyard. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may cast up to two instant and/or sorcery spells from among the revealed cards instead of one.
When Solitary Sanctuary enters the battlefield, tap target creature an opponent controls and put a stun counter on it. Whenever you tap an untapped creature an opponent controls, put a +1/+1 counter on target creature you control.