Before the 2.4 update arrives, you would use a Vial Hazard Move (1st phase), and don't throw the syringe (2nd phase of movement) to deal a "poison effect" to the opponent when you use a Countervenom Blockbuster (like the original game if I remember well), but now it doesn't work anymore, I tried with two different charges of Vial Hazard and then a Countervenom or use the same color of move and blockbuster (Example: Vial Hazard type B and Countervenom Detox), but there's no extra damage when I use Countervenom. Is it got a "nerf"? (If you can say that). I'll make an example when this "chain" used to work: Vial Hazard Type A+ Don't throw the syringe of Vial Hazard+ Any Countervenom Blockbuster (detox, paralysis and sedative)= Normal damage and extra damage (like a bleed effect but different in some way). P.S. If you're fighting with Filia against Valentine and use the first dash attack (swipe right) and then a normal attack (1 simple tap), Valentine will have a high chance to counterattack you (excluding burst move), even when you're doing a "legal combo". Have you noticed that?