The equipped creature still gets +3/+3
Certainly the Onslaught cards are not deep nor do they have a high average power level but none the less the set offers some staples, some nice effects, some key cards in certain places, including some nice tribal stuff and of course great cycling things
Each booster pack will have two rares or mythic rares, and two foils
Focus on corrupting each opponent first, get some extra cards from your commander, and then decide how youre going to achieve a poison kill
So, if you open 500 packs of Paldean Fates, the chance of getting both Charizard ex and Mew ex is almost 100%
Creatures that do something as soon as they enter the battlefield are best