Public Beta

Rules of Play

The complete current rules in one place. Anything unresolved is labeled as such.

Last updated · August 24, 2026
Core mechanic

Once per turn, pay zero.

“Once per turn, if a player would spend mana to cast a card or use an ability, they may pay {0} instead.”

This can be used during another player's turn. Precise interactions with alternate costs, additional costs, X spells, and mana abilities remain under review.

01

One shared library

Every player draws from the same Battle Giants deck.

02

Three-card opening hands

Each player begins the game with three cards.

03

An empty library is lethal

If a player would draw from the shared deck and no cards remain, that player loses the game.

04

Play 1v1 or multiplayer

There is currently no fixed maximum player count.

05

First-player draw

In 1v1, the player taking the first turn does not draw during their first draw step. This does not currently apply to multiplayer.

Not yet settled

Open rulings

  • Starting life total
  • Mulligan procedure
  • Shared-library ownership
  • Graveyard ownership and control
  • Search and shuffle effects
  • X spells and alternative costs
  • Mana-producing effects
  • “Win the game” effects