Andros will typically be using a load out with the card Abyss Walker which basically heals andro whenever he uses nether step this means that Cauterize is good against andro. If you play against a team with andro and a healer caut is a good pick
Try to wait until after Terminus uses his ult to use yours on him. If you Dragon Punch before he ults, he'll just come back to life and you'll be at risk of being in the blast.