This one go's upto 11

WereLord wrote:Name-Thunder Break
Normal Spell
Effect-Select 1 Gemini Monster you control with 1900 or more attack and send it to the Graveyard, then destroy all Xyz and non-Gemini monsters with a level or rank lower than the sent monster. You cannot declare an attack the same turn you activate this card.

A quick clarification of what I mean, If the sent gemini is level all level 4 or lower Non-Geminis and all Rank 4 or lower Xyz are destroyed.

Seems fine.

Name-Let it Die
Counter Trap
Effect-Activate this card when the effect of a card is activated, negate it's effect(s) and destroy it. Your opponent can send 1 card of the same type from their hand to the Graveyard to negate this effect and return this card to the owners deck.
This is like Hostile Negotiation but better. Naaaahhh.

Name-The Golden Pretender
Normal Trap
Effect-Activate only when you control no monsters and take damage. Special Summon 1 "Pretender Token" level 1 with x orginal attack and deffense where x is the damage you took, with this effect: The following effects cannot be negated. When this token enters the battle field select it's type and attribute. You can only control 1 "Pretender Token".
Legit. Good for a suicide and type/attribute shenanigans i guess.

Name-The Obisdion Knight
Level-8
Earth
Rock
Atk-2500
Def-2500
Effect-During an End Phase if this card was destroyed and sent to the Graveyard, you may banish this card and 1 face-up Dark monster you control to Special Summon 1 "The Shattered Obisdion Knight" From your Extra Deck Ignoring all Summoning Conditions. While this card is Banished and a face-up "The Shattered Obisdion Knight" on the field is destroyed Special Summon this card to your side of the field in face-up defense position.
yay Earth and Dark finally have synergy!

Name-The Shattered Obisdion Knight
Level-11
Earth
Rock
Fusion
Atk-4000
Def-0
Effect-Obisdion Knight + 1 level 6 or higher Dark monster + 1 level 4 or lower Earth Monster.
This card can only be Fusion Summoned with the above Fusion Materials. And cannot be Special Summoned by other ways. This card cannot be Set. This cards effect(s) cannot be negated. At the end of the Battle Phase that this card declared an attack switch this card to face-up defense position. If this card is in face-up defense postion then during your Main Phase 2 you can discard 1 card from your hand select 1 monster your opponent controls with higher defense than this card and destroy it. Whenever this card is destroyed instead of sending it to the Graveyard return it to your Extra Deck. While this card is face-up on the field it cannot be targeted by other cards effects.
Right now it seems pretty easy to get rid of and pretty hard summoning conditions (without obsidian knight's eff) but that's just me.