Hami reverse effects ?

According to Castle in 2006, the bug would be closed in the "not so distant future". So probably Next Sunday, A.D. at this point.

Nitpick here, but Tohit and Tohit Debuff are both schedule B and gave the same enhancement value. It is likely you are thinking of the Defense mods. Defense Buff is schedule B while Defense Debuff is schedule A.

As for "reverse effects", that is not really the case. The enhancers are doing exactly what they are supposed to do according to game mechanics. As far as the game is concerned, there is no such thing as debuffs, just buffs with a negative value. So when you slot a "Defense Debuff" Hamidon Origin Enhancement into your Evasion power, all the game sees is that it enhances defense powers, and applies the proper enhancement percentage.

Correct on both counts. The reason it seems "reverse" or anything like that is that the way the devs normally allow enhancers to fit in powers makes it seem like they must treat buffs and debuffs as different things, even though the game doesn't make that distinction. What's happening is that Hami-Os obey the non-IO set rules using the most permissive slotting a power takes. For example, for slotting purposes, Enzymes count as all of an endurance reducer, a defense debuff enhancer, and a toHit debuff enhancer. Since many defense powers accept endurance reducers, you can slip an Enzyme in there even though none of its other aspects apply. Then the fact that it acts as a defense buff/debuff boost, it applies that enhancement on +defense powers.

Last I checked, you can also do this with Centrioles and the few ranged +DR powers that also accept range enhancers. Very non-intuitively, damage resistance and damage are enhanced by the same boost attribute, so the damage enhancement in a Centriole enhances the +DR of the powers.

Oops. Thanks for the correction. I always confuse the two. I'll edit my first post in order to not confuse someone else who might not read all the way down to your post.