Burning Crimson Ring

[Thomas★Zero]

 

So this field spell is very battle orientated where it prevents direct attacks and doubles all damage dealt through battle in addition if it leaves the field it destroys all monsters on the field.

 

In battle focused decks like HERO's, Ancient Gears this can greatly boost the damage you deal to your opponent and even in Odd-Eyes Decks where with Odd-Eyes Pendulum Dragon you can with this even quadruple that damage.