Cheapest priced copy (Commander Masters): $8.49 at Card Kingdom, near mint, their price list as of .
Gisela, Blade of Goldnight 
Legendary Creature — Angel · 5/5 · Mythic · Avacyn Restored · #209
Flying, first strike
If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.
If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
11 printings · $8.49 to $24.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 204 | Mythic | $8.99 | $15.99Out of stock |
| Avacyn Restored | 209 | Mythic | $9.99 | $24.99 |
| Commander 2015 | 219 | Mythic | $8.99 | — |
| Commander Anthology Volume II | 9 | Mythic | — | $9.49Out of stock |
| Commander Masters | 338 | Rare | $8.49 | $9.99Out of stock |
| Commander Masters | 579 | Rare | — | — |
| Commander Masters | 682 | Rare | $9.99Out of stock | $12.99Out of stock |
| Murders at Karlov Manor Commander | 211 | Mythic | $8.99 | — |
| Open the Helvault | 209 | Mythic | — | — |
| The List | AVR-209 | Mythic | $8.49 | — |
| Secret Lair Drop | 218 | Mythic | $10.99 | $16.99 |
3 rulings from Wizards of the Coast
- 16 March 2018Gisela doubles damage dealt to opponents and permanents your opponents control from any source, including sources controlled by those opponents.
- 16 March 2018If damage dealt by a source you control is being divided or assigned among multiple permanents an opponent controls or among an opponent and one or more permanents they control simultaneously, divide the original amount and double the results. For example, if you attack with a 5/5 creature with trample and your opponent blocks with a 2/2 creature, you can assign 2 damage to the blocker and 3 damage to the defending player. These amounts are then doubled to 4 and 6 damage, respectively. You can't double the damage to 10 first and then assign 2 to the creature and 8 to the player.
- 16 March 2018If multiple replacement effects would modify how damage would be dealt, the player being dealt damage (or the controller of the permanent being dealt damage) chooses the order in which to apply those effects.