This card works well with "Elemental HERO Air Neos". Since it already gains ATK from having lower LP than your opponent, this card's effect could boost its ATK even further.
This card works well in a "Dinomorphia" Deck, as the archetype already relies on regularly paying half your LP. "Dinomorphia Kentregina" in particular will gain a minimum of 2000 ATK, enough to offset its own effect and create a potential finisher.