Talk:VPBE/@comment-5859660-20151105140324/@comment-26441222-20151106035310

Thunderlord's Dance can be applied by autoattacks and spells, has high base damage, is AoE, and is all applied at once. Assassins can use it for more burst, and tanks can use it to punish all-ins even without building damage.

Deathfire Touch is for poke and kite mages, while burstier champions aren't going to want to wait for the burn. It takes a lot of time for it to catch up to Thunderlord's base damage.

Warlord's Bloodlust is a different beast; it lets an ADC delay lifesteal to build damage sooner, and still have sustain.

All the keystone masteries have situational uses, and most champions will find more than one of them viable, each for a different playstyle.