An interesting interaction of Thunderlord's decree mastery and Lux's spells
Just played a ranked game on SR. At some point we were behind, I was around level 13-14, the opposite team started baron. I threw my E in the baron pit for vision, it tagged 3-4 of their team. I ulted and popped my E just before laser fired. This ended up proccing Lux's passive and TD passive (E+passive detonation from R+ R itself). 3 to 5 aoe hits plus the actual damage from my spells, and I stole baron from above 1500 hp. They didn't even have an opportunity to smite.
since his rotation travel time allows for all of his abilities to land nearly at the same time.