M:tG card similarity search
3 · Artifact
At the beginning of each player's upkeep, that player puts a flood counter on target non-Island land they control of their choice. That land is an Island for as long as it has a flood counter on it. At the beginning of each end step, if all lands on the battlefield are Islands, remove all flood counters from them.
| Name | Mana | Type | Text |
|---|---|---|---|
| Power Surge | RR | Enchantment | At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn. |
| Roiling Terrain | 2RR | Sorcery | Destroy target land, then Roiling Terrain deals damage to that land's controller equal to the number of land cards in that player's graveyard. |
| Nils, Discipline Enforcer | 2W | Legendary Creature — Human Cleric | At the beginning of your end step, for each player, put a +1/+1 counter on up to one target creature that player controls. Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature. 2/2 |
| Harbinger of Night | 2BB | Creature — Spirit | At the beginning of your upkeep, put a -1/-1 counter on each creature. 2/3 |
| Throne Warden | 1W | Creature — Human Soldier | At the beginning of your end step, if you're the monarch, put a +1/+1 counter on Throne Warden. 2/2 |
| Tremble | 1R | Sorcery | Each player sacrifices a land. |
| Yawning Fissure | 4R | Sorcery | Each opponent sacrifices a land. |
| Jinx | 1U | Instant | Target land becomes the basic land type of your choice until end of turn. Draw a card at the beginning of the next turn's upkeep. |
| Feast of Worms | 3GG | Sorcery — Arcane | Destroy target land. If that land was legendary, its controller sacrifices another land. |
| Energy Vortex | 3UU | Enchantment | As Energy Vortex enters the battlefield, choose an opponent. At the beginning of your upkeep, remove all vortex counters from Energy Vortex. At the beginning of the chosen player's upkeep, Energy Vortex deals 3 damage to that player unless they pay {1} for each vortex counter on Energy Vortex. {X}: Put X vortex counters on Energy Vortex. Activate only during your upkeep. |