{Fleecemane Lion} gets a +1/+1 counter on it from something else, lets say {Galovny Township}. Does it become Mounstrous?
From the rulings:
Monstrous isn't an ability that a creature has. It's just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.
Which means that whether or not a creature is monstrous is independent of the counters it has. The act of it going monstrous gives it a counter, but giving it a counter doesn't make it go monstrous.
No, monstrous is a status just like the new renowed from magic origins.
When it's monstrosity cost is paid for, the creature becomes monstrous. Most of the time this means adding X +1/+1 counters to it. And in some cases extra effects(like fleecemains indestructability and hexproof, or {stormbreath dragon}'s damage based on cards in hand.
Quote from: Mr_Fahrenheit on August 03, 2015, 09:10:22 PM
From the rulings:
Monstrous isn't an ability that a creature has. It's just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.
Which means that whether or not a creature is monstrous is independent of the counters it has. The act of it going monstrous gives it a counter, but giving it a counter doesn't make it go monstrous.
Dang, I took to long typing.