You can use dd1 in combos but it's hard as hell. For example, for specific combos with dd1 and Krushing Blows:So the combo i do from widows kiss is...
I use F22 as a neutral from a distance and when it hits I go F22 xx widows kiss Amp, J2, F13 xx DF2 Amp to give more damage over time.
BUT i had NO IDEA Amp BF4 puts all the bugs on the opponent. THATS A MAJOR GAME CHANGER! So now im ending my combos with that to get all them bugs!
So Deadly Swarm i think ur referring to DD2 that costs a bar of meter, basically has whatever bugs you have on your opponent to attack them causing quick DoT damage depending on how many bugs you have, then they come back to you. So that moves basically is a great way to checkmate your opponent OR I've seen it used in the middle of a combo while the opponent is in the cocoon of Amp Widows kiss.
I'm actually gonna try that in training mode when i get home because that looked swaggy as fuck! OOOOOO Thank you for that info!
df2 (KB) dash microdash 4 xx db3 amp dd1 j3 dash f13 df2 (574 dmg)
df2 (KB) dash microdash 4 xx db3 amp xx dd1 j3 dash f13 xx FB (724 dmg)
In theory, you can replace the double dash 4 with ji1 f13 but I need to get home to test it. I haven't messed around with Arachnophobia since I went on my crazy Buzzed journey. I originally saw these in Dark Lord's videos. You may not need to micro-dash between the jump-in kick and f13 but I like to.
As @Second Saint mentioned, you can also do db3 amp xx db1 ji1 f13 if you want to add some extras flavour. I don't have the damage numbers for those but the above is an alternative (with literally perfect time) that you can use to both do db3 amp and bring your bugs back for whacky damage in the right circumstance.
I will verify this once I get home.