Beetle Queen

Wither (This deals damage to creatures in the
form of -1/-1 counters.)
At the beginning of your upkeep, create two 2/2
green Beetle Guard creature tokens.
The Queens bile is incredibly acidic, clocking in at a whopping 0.05 on the pH scale. Immediately upon exposure to a test sample of steel, it began to dissolve
and spew noxious fumes. Tharson is OK from this encounter.