Emblem of the Worm

You wish a new rule into the game. Examples
may include:
- Creatures you control gain +5/+5, trample, vigilance, hexproof, haste and double strike.
- Search your deck and put all lands into play, untap your lands and draw ten cards.
- Any creatures you don't like are destroyed.
- Each player summons a creature they own,
the player with the strongest creature wins.