MTG Necromancer's Magemark [duplicate]

Question

Necromancer's Magemark says

Enchant Creature
Creatures you control that are enchanted get +1/+1
If a creature you control that's enchanted would die, 
return it to it's owners hand instead.

Is that a +1/+1 counter? Or is it just a modification to the P/T?

Also, given the language it reads as if it means to say any creature enchanted by any enchantment. Correct?

Answer 1

Since the card text does not use the word "counter" it is not a counter. It's just a modification to P/T. See also: Are +1/+1 counters different from +1/+1 effects?

And the return clause says "a creature" which means any creature (you control), so yes, any enchanted creature you control returns to hand instead of dying.