TEXTURED FOILCheapest priced copy (Commander Collection: Green): $4.99 at Card Kingdom, near mint, their price list as of .
Omnath, Locus of Mana 
Legendary Creature — Elemental · 1/1 · Mythic · Commander Masters · #1063
You don't lose unspent green mana as steps and phases end.
Omnath gets +1/+1 for each unspent green mana you have.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
7 printings · $4.49 to $32.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Collection: Green | 2 | Mythic | $4.99 | $5.99 |
| Commander Masters | 310 | Mythic | $4.99 | $4.49 |
| Commander Masters | 568 | Mythic | — | — |
| Commander Masters | 680 | Mythic | $7.99 | $9.99 |
| Commander Masters | 1063 | Mythic | — | $22.99 |
| From the Vault: Legends | 7 | Mythic | — | $6.49 |
| Worldwake | 109 | Mythic | $6.99 | $32.99 |
3 rulings from Wizards of the Coast
- 1 March 2010You can keep unspent green mana indefinitely while Omnath is on the battlefield. That means if you add a green mana during one step or phase, you can spend it during a later step or phase, or even a later turn. Other types of mana will be lost as normal as each step and phase ends.
- 1 March 2010If a green mana you produce has certain restrictions or riders associated with it (for example, if it was produced by Ancient Ziggurat), they'll apply to that mana no matter when you spend it.
- 1 March 2010Once Omnath leaves the battlefield, you have until the end of the current step or phase to spend your unspent green mana before it too is lost as normal. There is no penalty associated with this other than the loss of the mana.