First printed in Rivals of Ixalan (2018)
Enter the Unknown 
Sorcery
Target creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the creature, then put the card back or put it into your graveyard.)
You may play an additional land this turn.
MTGO price: 0.003 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
16 combos from Commander Spellbook, the most popular first.
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Icetill Explorer + Mystic Sanctuary + Zuran Orb
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Icetill Explorer + Mystic Sanctuary + Overgrown Estate
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Overgrown Estate + Szarel, Genesis Shepherd
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Szarel, Genesis Shepherd + Zuran Orb
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Overgrown Estate + Walk-In Closet // Forgotten Cellar
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Overgrown Estate + Ramunap Excavator
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Overgrown Estate + Perennial Behemoth
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Crucible of Worlds + Enter the Unknown + Mystic Sanctuary + Overgrown Estate
- Infinite lifegain triggers, Infinite lifegain…: Bolas's Citadel + Conduit of Worlds + Enter the Unknown + Mystic Sanctuary + Overgrown Estate
- Infinite lifegain triggers, Infinite lifegain…: Ancient Greenwarden + Bolas's Citadel + Enter the Unknown + Mystic Sanctuary + Overgrown Estate
Legality
Constructed
- Standard Not legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not legal
- Penny Dreadful Legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal