Cheapest priced copy (Commander 2021): $0.49 at Card Kingdom, near mint, their price list as of .
Oversimplify 
Sorcery · Rare · Secrets of Strixhaven Commander · #322
Exile all creatures. Each player creates a 0/0 green and blue Fractal creature token and puts a number of +1/+1 counters on it equal to the total power of creatures they controlled that were exiled this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2021 | 72 | Rare | $0.49 | — |
| Commander 2021 | 399 | Rare | $0.69 | — |
| Duskmourn: House of Horror Commander | 228 | Rare | $0.49 | — |
| Secrets of Strixhaven Commander | 322 | Rare | $0.49 | — |
2 rulings from Wizards of the Coast
- 16 April 2021Oversimplify counts the total power of the creatures as they last existed on the battlefield, not the power of those cards in exile.
- 16 April 2021If a commander is exiled this way, its power will be counted along with the other creatures. Once Oversimplify finishes resolving, that commander's owner may move it to the command zone.