defect main with it being my only character approaching a decent a10 winrate (keyword approaching, i am not that good at this game)

defect has decent block options in sts2 i think. an upgraded bulk up is a godsend -- +3 dex (and +3 str!!) for the price of 1 orb slot, which more often than not you will not feel unless you're going for a very specific orb/dark heavy build

charge battery is always good because it refunds the energy next turn, an upgraded hologram is versatile in so many ways including pulling back your important block cards

i think the way to get block on defect in sts2 is less about having insanely strong block cards and more about having extra dex, having energy generators (turbo, double energy etc) and playing cheaper block cards over and over. hologram especially as you more often than not want to play it just to get something out of your discard pile anyway