Cheapest priced copy (Dominaria Remastered): $1.29 at Card Kingdom, near mint, their price list as of .
High Tide 
Instant · Common · Fallen Empires · #18c
Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.
Legal inCommanderLegacyVintage
Banned inPauper
Not legal inBrawlStandardPioneerModern
10 printings · $1.29 to $18.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria Remastered | 54 | Uncommon | $1.29 | $1.99 |
| Dominaria Remastered | 286 | Uncommon | $1.79 | $4.99 |
| Dominaria Remastered | 419 | Uncommon | $2.29 | $9.99 |
| Fallen Empires | 18a | Common | $1.29 | — |
| Fallen Empires | 18b | Common | $1.29 | — |
| Fallen Empires | 18c | Common | $1.29 | — |
| IDW Comics Inserts | 13 | Rare | $18.99 | — |
| The Zeta Set | 18 | Common | — | — |
| The Zeta Set | 139 | Common | — | — |
| The Zeta Set | 260 | Common | — | — |
2 rulings from Wizards of the Coast
- 8 December 2022The effect applies even if the Island in question entered the battlefield after High Tide resolved.
- 8 December 2022The delayed triggered ability refers to any land with the land type Island, not just those named Island.