>>544579479
I believe there are two other events that give +2 levels to your sinners, but yeah those are the options
>I just completely ignore the gifts after each pack
if you mean skipping the gift choice my brother don't fucking do that, you lose out on gifts or dupes for fusions and let the game pick the enemy buffs for you. there will be floors where all options are bad, you go for the least bad. learn what offense and defense levels do if you haven't already (+3 offense level means +1 clash power, for instance https://limbuscompany.wiki.gg/wiki/Offense_Level_%26_Defense_Level) and what the difference between Base Power, Clash Power and Final Power are (that's my order from worst to least worst, at later floors Clash might be better since you're mostly likely losing those anyways) and pick pack gifts accordingly