Dont worry none about that text at the bottom there what seems to be talkin about findin yerself a prisoner in your own body, forced to struggle from within
Masquerain has the following attacks: Air Slash - 70 damageDiscard a random Energy from this Pokmon
Yes, you can easily sub out a Mountain for Sokenzan, Crucible of Defiance or Shinka, the Bloodsoaked Keep without hurting your mana base, but doing so decreases the effectiveness of payoffs that specifically need Mountains to work
However, with the invention of infect in Scars of Mirrodin block, poison counters grew in reliability as something like Skithiryx would kill in three hits, and was a much bigger threat as a result
Nascent Metamorph becomes a copy of that card until end of turn
Id also say that cards that let you bend the rules of the game are weird