Special round ideas:

Each player has Unexpected Potential.

Each player has Hymn of the Wilds.

Each player has Double Stroke.

Each player has Brago's Favor.

Emblem with Trinisphere text in play.

Emblem with Mana Flare text in play.

Emblem with Wheel of Sun and Moon text in play.

Each player gets a basic land of their choosing on their starting hand.

Creature's can't attack.

No creatures.

Each player has a 60 card deck of wastes.

Each player has a 60 card deck of wastes. They lose if they would draw a card with no cards in their library.

Each player must discard one of their cards before the first turn.

Two card deck, you can play a basic from outside the game each turn.