Vicious Slash needs rework - it's very hard to find 8 points engine that is worth to strike at, usually it is 5 or 6 (or lately often even 4 to kill etheral) , and the bleeding donages are easy to minimalize by placing vield cards next to engines. My Idea of rewok is: deal 2 domage, charges 3, provinsion bonus 14. I think it will be much more effective, and provinsion and number of charges are ok - SC Guerilla Tactics have 3 charges of 2 dmg or boost with row change for 15 provinsion, so I think 4 charges dmg for 14 provinsion will be fair.