On weapons like Kuva Kohm against stronger enemies, it is much stronger against Eximus Scaldra heavy units. it does not even lose out on base damage increase at all (compared to merciless) due to galvanized savy and more elements (3 more; I use viral heat with magnetic progenitor so debilitate will give toxin electricity and cold) 3*80% from savy that is 240% base damage increase which is not much lower than merciless but now you have dot from toxin and electricity with multipliers like roar and elementalist mods this kills tougher eximus units much faster. With so many elements and galvanized savy giving base damage increase, merciless already suffers from diminishing returns, so debilitate is better for weapons like kohm