Damage to Protean Hydra is prevented by removing +1/+1 counters from it. The card states:
Whenever a +1/+1 counter is removed from Protean Hydra, put two +1/+1 counters on it at the beginning of the next end step.
So if a -1/-1 counter is placed on it, it cancels out one +1/+1 counter. Is the counter still considered to be 'removed' or does it just disappear?
Main Question: If Protean Hydra has a -1/-1 counter placed on it (say for example by Contagion Clasp), will it receive 2 +1/+1 counters?