My 1/1 creature with a +1/+1 counter on it (so a 2/2) died when something gave all my creatures -2/-2. It wasn't a -2/-2 counter to remove the counter, but when the creature died, I didn't receive a counter back onto my explorer's cache.
My 1/1 creature with a +1/+1 counter on it (so a 2/2) died when something gave all my creatures -2/-2. It wasn't a -2/-2 counter to remove the counter, but when the creature died, I didn't receive a counter back onto my explorer's cache.