Darkness can never be conquered

[Forest Fire]

[spoiler Oh s*** I forgot to set it to 41%]

Sun Eater
Level 12 DARK
Reptile/Synchro/Effect
2 Synchro Tuner monsters + 2 or more non-Tuner Synchro monsters
The Synchro Summon of this card cannot be negated. Cards' and effects cannot be activated in response to this card's Synchro Summon. Cards you control are unaffected by your opponent's card effects. If this card would be sent to the Graveyard, banish it instead.
3500 ATK/ 0 DEF

[Flash Flyer - Sakura]

Realistically, you're not going to be Synchro Summoning this much (if at all), but yes it is still capable of screwing your opponent over A LOT.

For its summoning conditions, it's still 8 cards minimum worth of investment to make.

 

You could use Phonon Dragon, reduce itself to 1; Synchro Summon another one the following turn with the same thing, then summon whatever two Synchros you want whose Levels total 10, and then go into this. But yes, it's rather difficult to pull off, but has a very good reward if you do manage it.

 

With that in mind though, locking your opponent from doing anything is not really the best idea.

Get this card out, and your opponent essentially quits the duel, unless they either get a +3.5K monster out or something else.

 

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I would probably change it to have your monsters be unaffected by your opponent's card effects and stuff like that.

At the very least, the opponent can still do something, even if you pull off the near-impossible with this card, as opposed to a complete shutdown.

 

Right now, it is indeed a massive floodgate, albeit one that is rather impossible to summon by current standards.

You can still do it, but your resources are better spent on other monsters.

[(GigaDrillBreaker)]

Hyper Librarian+Armory Arm+Formula+Phonon.

 

No thank you. Effects like this which lock down everything are too top-heavy and shouldn't exist in any capacity.

[Forest Fire]

Hmm.. what would lowering it's level down a bit do? besides making it harder to get out, lol