Snakeform

1, T: Add UR.

Vigilance Whenever you attack, you create a Food token for each player being attacked. (It's an artifact with "2, T, Sacrifice this token: You gain 3 life.") W, T, Tap X untapped Foods you control: Create X 1/1 white Human creature tokens.

Artifacts you control are Clues in addition to their other types and have "2, Sacrifice this artifact: Draw a card." Whenever you sacrifice a Clue, target creature can't be blocked this turn.

Whenever Mastermind Plum attacks, exile up to one target card from a graveyard. If an artifact card was exiled this way, create a Treasure token. (It's an artifact with "T, Sacrifice this token: Add one mana of any color.") Whenever you cast a spell, if mana from a Treasure was spent to cast it, you draw a card and you lose 1 life.

Haste When Headliner Scarlett enters, creatures target player controls can't block this turn. At the beginning of your upkeep, exile the top card of your library face down. You may look at and play that card this turn.

Whenever Emissary Green attacks, starting with you, each player votes for profit or security. You create a number of Treasure tokens equal to twice the number of profit votes. Put a number of +1/+1 counters on each creature you control equal to the number of security votes.

Vigilance Other Soldiers you control have vigilance, trample, and haste. 2RW: Until end of turn, Soldiers you control gain "Whenever this creature attacks, it deals 1 damage to defending player."

Equipped creature gets +1/+1 and has vigilance and "3, T: Tap target creature." 2, Sacrifice this Equipment: Draw a card. Equip 2