From Battlerite Wiki
Pestilus has not been doing very well in high ranked games as his lack of mobility and self healing makes him a squishy target. To help him out he has received a bit of extra mobility while casting Moth. Similarly the speed and range of Infest was buffed and it can now travel through walls.
To rein in Pestilus' mid orb control we have reduced the output of Bloodsucker. Swarm has received a slight value increase to allow him to withstand a bit more pressure. Some Battlerite tweaks will allow for more diverse Pestilus builds.