Polymock: Defeat Grulhammer Silverfist

Overview
Summary
 * Defeat Grulhammer Silverfist in a game of Polymock at Umbral Grotto.

Obtained from
 * Hoff in Rata Sum

Reward
 * 250 Asura Reputation points
 * Summon Ruby Djinn
 * Fire Elemental Polymock Piece

Requirements
 * Polymock: Defeat Fonk

Note
 * Pieces used by Grulhammer:
 * Dredge Polymock Piece
 * Dolyak Polymock Piece
 * Dwarf Polymock Piece


 * Pieces used to defeat Grulhammer - Earth to counter the Dredge (Ice Elemental - you should easily be able to defeat him), Kappa to defeat the Dolyak (Smite Monk - this one is TOUGH, interrupt his Banish as much as you can, and Ice to defeat the Dwarf (Earth Elemental - stop his Sandstorm at all costs).
 * Using the Earth Elemental and the Kappa pieces should be able to defeat him, interrupting Sandstorm helps in defeating him, but it's not necessary.

Followup
 * Polymock: Defeat Master Hoff