Summoning "Gren Maju Da Eiza" with "D.D.R. - Different Dimension Reincarnation" can be accomplished on the same turn you Special Summon "Grinder Golem" by deliberately taking 3000 damage with an attack from a "Grinder Token" on "Grinder Golem". This is helpful because "Grinder Golem" does not allow you to Normal Summon/Set on the same turn it is Special Summoned.
This cards works well with "D.D. Dynamite", if you and your opponent have a lot of monsters that is.
"Inferno Tempest" works extremely well with "Soul Absorption" - you will gain 500 Life Points for every card removed from play - easily making up for the large amount of life points lost in order to activate the effect of this card.
Combine the above with "Lava Golem" and "Gren Maju Da Eiza" for a quick advantage of potentially thousands.
You can also use "Alchemy Cycle" to draw a card in case you don't have a "Scapegoat" or a 0 ATK monster to attack the 3000+ attack monster with.
"Cyber Valley" is a better choice since if you don't have the combo, you can use it to stall a turn while drawing that same card. It also removes itself from play, possibly letting you use "Chaos End".
By using "Grinder Golem" and "Soul Absorption" together with this card, this shall cause a big harm in the Duel. This way, you keep using "Morphing Jar" and "Book of Eclipse" continuously, so that the opponent to whom the previous combo is directed Decks Out.
A good tactic is to use "Inferno Tempest" with "D.D. Scout Plane" and "Macro Cosmos". "Inferno Tempest" will remove all monster cards from play, but "D.D. Scout Plane" will be Special Summoned to your side of the field during the end phase of the turn, and "Macro Cosmos" will ensure it keeps getting returned to the field.
If you have multiple copies of "D.D. Scout Plane" in your Deck or Graveyard when you activate "Inferno Tempest", you could also activate "Virus Cannon" and tribute your copies of the Planes to further mill your opponent's deck.
Normal Summon "Necroface" after this card is activated to regain all of your monsters and have an incredibly powerful beatstick to attack with.
"Inferno Tempest" can be searched and placed face-down on the field by "Spell Calling". Although your opponent will know that this card is face-down, that won't matter if you have "Grinder Golem" in your hand.
A very easy way to trigger "Inferno Tempest" is to attack a Special Summoned "Grinder Golem" with a "Grinder Token". You can then use the other "Grinder Token" to activate "Crush Card Virus", to destroy "Grinder Golem" and any other remaining threats on the field or in your opponent's hand.
Use this card to banish multiple copies of "Necroface". This can possibly banish both you and your opponents entire Decks in one move and your opponent lose due to not able to Draw any cards (bare in mind this can backfire on you if not careful).