This card can potentially destroy any non-Wyrm-type Extra Deck monster by battle, so long as its DEF has not been raised, or become unaffected by other card effects (or is unaffected by monster effects, such as "First of the Dragons").
This card can single-handedly get you rid of normally difficult to defeat monsters, such as "Shooting Quasar Dragon", "Cyber Dragon Infinity", etc. where other monsters and even card effects would fail. Since this card's effect is Continuous, it can't be negated by the effects of the likes of "Shooting Quasar Dragon", "Stardust Sifr Divine Dragon" and "Crystal Wing Synchro Dragon" since those monsters only negate activated effects.
Also, it will be able to destroy "Quasar" by battle and the "Shooting Star Dragon" Special Summoned afterwards, or any other monster the opponent will Summon in place of "Quasar".
This card can be combined with "Blue-Eyes Chaos MAX Dragon", as it is not affected by this card's effect. "Chaos MAX Dragon" can then destroy an opponent's monster affected by this card, possibly resulting in an OTK.