Cheapest priced copy (Dominaria Remastered): $0.35 at Card Kingdom, near mint, their price list as of .
Floodgate 
Creature — Wall · 0/5 · Uncommon · Dominaria Remastered · #49
Defender
When this creature has flying, sacrifice it.
When this creature leaves the battlefield, it deals damage to each nonblue creature without flying equal to half the number of Islands you control, rounded down.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria Remastered | 49 | Uncommon | $0.35 | $0.49 |
| Mirage | 67 | Uncommon | $0.39 | — |
| The List | MIR-67 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 8 December 2022Floodgate’s first triggered ability is a state trigger. It won’t trigger again while the ability is on the stack, but if the ability is countered and Floodgate still has flying, it will trigger again immediately.