Both monsters must be Special Summoned under your opponent's control.
Both require 2 monsters to be Summoned, but this card requires Tributes while "Grinder Golem" provides 2 monsters for the player who Summoned it.
After the Special Summon, neither monster allows Normal Summoning or Setting another monster during the same turn.
Both monsters also have 3000 ATK.
As most of Yami Marik's primary cards are based on torture devices, this card seems to be based upon torture through hot temperatures or burning.
The person being imprisoned in a cage while "Lava Golem" stares the victim down is likely a reference to what happened to Joey Wheeler during his Duel with Marik: Joey (the enemy Duelist) is in the cage and the "Golem" melts onto the duelist, burning them and taking away their Life Points.