Cheapest priced copy (Innistrad: Midnight Hunt): $5.49 at Card Kingdom, near mint, their price list as of .
Gisa, Glorious Resurrector 
Legendary Creature — Human Wizard · 4/4 · Rare · Innistrad: Midnight Hunt · #103
If a creature an opponent controls would die, exile it instead.
At the beginning of your upkeep, put all creature cards exiled with Gisa onto the battlefield under your control. They gain decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
6 printings · $5.49 to $32.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 103 | Rare | $5.99 | $32.99 |
| Innistrad: Midnight Hunt | 103 | Rare | $5.99 | $6.99 |
| Innistrad: Midnight Hunt | 314 | Rare | $5.49 | $7.99 |
| The List | MID-103 | Rare | — | — |
| Innistrad: Midnight Hunt Promos | 103p | Rare | $7.49 | $9.99 |
| Innistrad: Midnight Hunt Promos | 103s | Rare | — | $9.49 |
7 rulings from Wizards of the Coast
- 24 September 2021Decayed represents a static ability and a triggered ability. "Decayed" means "This creature can't block" and "When this creature attacks, sacrifice it at end of combat."
- 24 September 2021Because creatures controlled by opponents aren't dying due to Gisa's replacement effect, any "when [this creature] dies" triggered abilities those creatures have won't trigger.
- 24 September 2021Once a creature with decayed attacks, it will be sacrificed at end of combat, even if it no longer has decayed at that time.
- 24 September 2021Decayed does not create any attacking requirements. You may choose not to attack with a creature that has decayed.
- 24 September 2021If a creature your opponent controls would die and more than one effect would cause it to be exiled, that opponent chooses which one to apply. If the creature is exiled due to some other replacement effect, it will not be returned to the battlefield with Gisa.
- 24 September 2021Gisa does not grant haste to the creatures that are returned to the battlefield, so you normally won't be able to attack with them the turn they are returned.
- 24 September 2021Decayed does not grant haste. Creatures with decayed that enter the battlefield during your turn may not attack until your next turn.