If we don't find a minion during character look up, send back -1 instead of 0
If we don't find a minion during character look up, send back -1 instead of 0

oyachai/HearthSim,slaymaker1907/HearthSim,relimited/HearthSim,slaymaker1907/HearthSim,oyachai/HearthSim,relimited/HearthSim