M:tG card similarity search
2UU · Creature — Oyster
You may choose not to untap Giant Oyster during your untap step. {T}: For as long as Giant Oyster remains tapped, target tapped creature doesn't untap during its controller's untap step, and at the beginning of each of your draw steps, put a -1/-1 counter on that creature. When Giant Oyster leaves the battlefield or becomes untapped, remove all -1/-1 counters from the creature. 0/3
| Name | Mana | Type | Text |
|---|---|---|---|
| Lulu, Loyal Hollyphant | 3W | Legendary Creature — Elephant Angel | Flying At the beginning of your end step, if a permanent you controlled left the battlefield this turn, put a +1/+1 counter on each tapped creature you control, then untap them. Choose a Background (You can have a Background as a second commander.) 3/2 |
| Voltaic Key | 1 | Artifact | {1}, {T}: Untap target artifact. |
| Tideforce Elemental | 2U | Creature — Elemental | {U}, {T}: You may tap or untap another target creature. Landfall — Whenever a land enters the battlefield under your control, you may untap Tideforce Elemental. 2/1 |
| Winter's Night | RGW | World Enchantment | Whenever a player taps a snow land for mana, that player adds one mana of any type that land produced. That land doesn't untap during its controller's next untap step. |
| Galvanic Key | 2 | Artifact | Flash {3}, {T}: Untap target artifact. |
| Howling Mine | 2 | Artifact | At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card. |
| Permafrost Trap | 2UU | Instant — Trap | If an opponent had a green creature enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost. Tap up to two target creatures. Those creatures don't untap during their controller's next untap step. |
| Stony Strength | G | Instant | Put a +1/+1 counter on target creature you control. Untap that creature. |
| Burst of Strength | G | Instant | Put a +1/+1 counter on target creature and untap it. |
| Niblis of the Breath | 2U | Creature — Spirit | Flying {U}, {T}: You may tap or untap target creature. 2/1 |