As long as the conditions were met at the time you activated the effect, the effect will persist and will last until the end of your opponents turn, even if the conditions are no longer met at a later point
I do expect this card (as with most) to dip in price a little bit, although it does have the potential to gain significant value if Merfolks boost from MH3 propels it into the top spots in the meta
If this coin comes up tails, the Dragonite will only do 140 damage, and will not be able to attack in the next turn
Rounding out the best removal options is Honor the Fallen, the only real instant-speed graveyard interaction available to us in Boros
Elle est par exemple le contre parfait pour DPE, trs populaire en ce moment puisquelle peut protger nimporte quel plante sur le terrain de la destruction en effet continu, et derrire elle peut le piquer du cimetire adverse avant quil ne puisse se reborn par son effet, liminant purement et simplement sa menace sans avoir utiliser de ressource