Guide to Buffs, Debuffs, and Passive Abilities

[dEaF TO LiGhT]

Does anyone know what the red icons that pop up sometimes and say +3 or -50 do? I see the +3 ones pop up often when doing Soldier Eddie's Roulette (see picture). I also see them pop up when fighting trolls in the underworld, but they'll say -50 or something. They're not in this list.