Color war (edited)

If was spent to cast Ursenine Featherbeast it enters with an additional flying counter on it.
If was spent to cast Ursenine Featherbeast it enters with an additional trample counter on it.
When Ursenine Featherbeast attacks, you may remove a counter from it, if you do creatures with converted mana cost 1 or less get the removed counters ability until end of turn.
When another creature with mana value one or less enters, if it was green, put a trample counter on Ursenine Featherbeast, if it was white put a flying counter on it instead