Cheapest priced copy (Double Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Invigorate 
Instant · Common · Duel Decks Anthology: Garruk vs. Liliana · #19
If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.
Target creature gets +4/+4 until end of turn.
Legal inCommanderLegacyVintage
Banned inPauper
Not legal inBrawlStandardPioneerModern
13 printings · $0.35 to $32.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 172 | Uncommon | $0.35 | $0.49 |
| Masters 25 | 173 | Uncommon | $0.35 | $1.49 |
| Commander 2011 | 162 | Common | $0.49 | — |
| Duel Decks: Garruk vs. Liliana | 19 | Common | $0.69 | — |
| Eternal Masters | 174 | Uncommon | $0.35 | $0.49 |
| Game Night: Free-for-All | 99 | Uncommon | $0.69 | — |
| Duel Decks Anthology: Garruk vs. Liliana | 19 | Common | $0.69 | — |
| Mercadian Masques | 254 | Common | $0.49 | $32.99 |
| The List | A25-173 | Uncommon | $0.79 | — |
| The List | MMQ-254 | Common | $0.35 | — |
| The Zeta Set | 79 | Common | — | — |
| The Zeta Set | 200 | Common | — | — |
| The Zeta Set | 321 | Common | — | — |
2 rulings from Wizards of the Coast
- 7 August 2020To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as the alternative cost of Invigorate), add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
- 7 August 2020If an effect says that an opponent can't gain life, you can't have that player gain life to pay Invigorate's alternative cost. If an effect instead replaces life gain, such as that of Sulfuric Vortex, you may choose to pay the cost even though the cost's action is replaced with nothing.