Let's talk about Volcanic Counter.
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Volcanic Counter (PTDN-EN012)
3 Stars / FIRE / Pyro / Effect Monster
300 / 1300
When you take Battle Damage while this card is in your Graveyard, remove it from play. Then, if there is a FIRE monster other than "Volcanic Counter" in your Graveyard, inflict damage to your opponent equal to the amount of Battle Damage you took.
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I've been meaning to make an OTK with this.
To begin, I'm wondering if when you take battle damage, if you remove every single Volcanic Counter in your graveyard and then apply the effect of each. If so, then good.
The OTK involves me summoning a Grinder or Lava Golem to your side of the field, then ramming a low ATK monster into it - let's say a Sheep Token - and then removing the Volcanic Counters from my Graveyard to inflict a whole lot of hurting onto you. Since Sheep Tokens / Grinder Golem Tokens bypass Gravity Bind, Messenger, and Level Limit, they are ideal for this purpose. Grinder Golem might not be so useful against Stumbling or Level Limit, though, since it has a mere 200 (?) DEF and that's only 600 damage with 3 Counters.
Some things to think about:
There's the part that requires you to have another FIRE-type monster in your graveyard prior to inflicting the damage. If not, then the Counter is put to waste. You could really screw up by drawing only a Volcanic Counter on the first turn and burn one right then and there. Of course, it's only one other monster that you need, so it can't really be that hard.
Then, there's the issue of sending those Volcanic Counters to your Graveyard. Since FIRE isn't exactly the best at searching, it may be somewhat hard to get all three in the grave right before the kamikaze attack. There's Foolish Burial and Hand Destruction, definitely. Other cards to consider might be Chain Destruction + UFO Turtle, or possibly Soul of Fire + Burial from a Different Dimension (which should be in the deck anyways).
Third, since Volcanic Counter's effect is mandatory, you'll want to prevent your foe's attacks until you are ready. If they ram you with a weak monster, your set up Counters will be put to waste. This can be circumvented by using aforementioned Burial from a Different Dimension. It's also a good idea to use normal burn cards on the side to prevent your foe from surviving even after battering them the 12 max times with Volcanic Counter.
So, cards to definitely put in: Lava Golem, Grinder Golem, UFO Turtle, Volcanic Counter, Sangan, Burial from a Different Dimension, Foolish Burial, Scapegoat, and staples.
Cards to maybe put in: Creature Swap, Fires of Doomsday, Soul of Fire, Chain Destruction.
It's just a thought now. Comments and suggestions for other cards to put in.
As it stands, there isn't much now, but this card looks fun and has tons of potential if used right.
Only 34 cards.