When Reservoir Walker enters the battlefield, you gain 3 life and get (three energy counters).

Converge — Creatures your opponents control get -X/-0 until end of turn, where X is the number of colors of mana spent to cast this spell.
Draw a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Escalate (Pay this cost for each mode chosen beyond the first.)
Choose one or more —
• Creatures target player controls gain trample until end of turn.
• Savage Alliance deals 2 damage to target creature.
• Savage Alliance deals 1 damage to each creature target opponent controls.

This spell can't be countered.
The next creature card you cast this turn can be cast as though it had flash. That spell can't be countered. That creature enters the battlefield with an additional +1/+1 counter on it.

Devoid (This card has no color.)
When Scion Summoner enters the battlefield, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add ." ( represents colorless mana.)

Flying
: Senate Courier gains vigilance until end of turn.

Destroy all artifacts. They can't be regenerated.

At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Sightless Brawler can't attack alone.
Enchanted creature gets +3/+2 and can't attack alone.

Sizzling Barrage deals 4 damage to target creature that blocked this turn.

Flying, menace

Devoid (This card has no color.)
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)
: Sludge Crawler gets +1/+1 until end of turn.

Manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Choose target creature. Exile the top card of your library. You may have Spark of Creativity deal damage to that creature equal to the exiled card's converted mana cost. If you don't, you may play that card until end of turn.

Enchant creature
Enchanted creature gets +2/+2 and has flying.

Flying
: Return target Spirit you control to its owner's hand.

Defender
Metalcraft — As long as you control three or more artifacts, Spire Serpent gets +2/+2 and can attack as though it didn't have defender.

Sliver creatures you control have "Whenever this creature is dealt damage, it deals that much damage to target player or planeswalker."

, : Create a 2/2 blue Homunculus creature token, then sacrifice a creature.