Diamorappa, Raging Bezerker

Afflict 2, Menace, Trample
Other Murloc creatures you control have Menace.
Whenever a player casts a creature spell, you may pay {g}. If you do, put a +1/+1 counter on
Diamorappa, Raging Bezerker.
Tap X untapped Murloc you control: Add X
mana in any combination of colors, where X
is equal to the result.