Ok, as always with layers, I might misunderstand something, but I believe the creature would stay a 1/5 with a +1/+1 counter (not even a 2/5)
From what I understand:
- 7c is the layer where the power-changing continuous effects take place
- 7d is the layer where counter-based power changing occurs
So your ability applies at 7c, and probably can’t ever see counters
Why ever? Well, again if I understand correctly, layers check resets everything each “loop”. This is why blood moon still applies when you remove its rule text, because each layer check, it applies the type change before the ability removing, rendering the abiliy removing effectively useless
This doesn’t apply when this kind of effect are resolved (trigger, activation and cast), because every layers where already checked before, as the effect is not using the layers itself.
“America is back!” For the less French-speaking lemmings