Ya the dash isn't the most necessary because running through damage is encouraged but the main reason I implemented it was for game feel and clutch plays when at one heart but it diffidently isn't useful every time. Glad you liked the damage stacking, I completely agree on your strat, (not to brag but I used a strat like that to get a time of 46 seconds [course now being the dev makes doing that a bit easier lol]), I think its a fun though cause it gets the player to go down to one health in exchange for high damage dealing.
Thanks for the feed back :)