Mightform Harmonizer
Landfall — Whenever a land you control enters, double the power of target creature you control until end of turn. Warp {2}{G} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)
Rulings (2)
Jul 25, 2025 · If an effect instructs you to “double” a creature’s power, that creature gets +X/+0, where X is its power as that effect begins to apply. Similarly, a creature whose toughness is doubled gets +0/+X, where X is its toughness as the effect begins to apply.
Jul 25, 2025 · If a creature’s power is less than 0 when it’s doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is. For example, if an effect has given Bear Cub, a 2/2 creature, -4/-0 so that it’s a -2/2 creature, doubling its power and toughness gives it -2/+2, and it becomes a -4/4 creature.
Where it’s played now
Inclusion by archetype · Standard
| Archetype | Format | Inclusion | Copies | Decks (n) |
|---|---|---|---|---|
| Mono Green Landfall | Standard | 100% | 3–4× | 70 |
| Selesnya Landfall | Standard | 100% | 3–4× | 34 |