First printed in Rise of the Eldrazi (2010)
Reality Spasm 
Instant
Choose one —
• Tap X target permanents.
• Untap X target permanents.
Combos
25 combos from Commander Spellbook, the most popular first.
- Infinite untap of permanents you control, Infinite magecraft triggers…: Hinata, Dawn-Crowned + Reality Spasm + Soulfire Grand Master
- Near-infinite card draw, Near-infinite draw triggers: Hinata, Dawn-Crowned + Reality Spasm + Voracious Bibliophile
- Infinite colored mana, Infinite magecraft triggers…: Reality Spasm + Reiterate
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Reality Spasm + Twincast
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Insidious Will + Reality Spasm
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Reality Spasm + Swarm Intelligence
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Fire Lord Azula + Reality Spasm
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Galvanic Iteration + Reality Spasm
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Reality Spasm + Thousand-Year Storm
- Infinite untap of permanents you control, Infinite magecraft triggers…: Errant, Street Artist + Increasing Vengeance + Reality Spasm
Legality
Constructed
- Standard Not legal
- Pioneer Not legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Not legal
- Timeless Not legal
- Alchemy Not legal
- Penny Dreadful Legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Not legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Not legal
- Standard Brawl Not legal
- Competitive Brawl Not legal