Inting Karthus strategy in ARAM
- Turn on Defile
- Snowball in under enemy turret to get turret aggro
- Team joins the fight, knowing they won't take turret hits for a while
- Spam Q until dying
- Spam Q for another four seconds
- Ult if it's ready, otherwise continue to spam Q until grey screen
You'll die a lot, but you'll also deal a huge amount of damage, absorb a lot of damage for your team due to not caring about dying, and turn the enemy team's turret from haven to hazard. There isn't really any counterplay that I can tell, because you're untouchable half the time.

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