Pick a longer-lived scope when you want recurring triggers (e.g
If your opponent casts a few one-mana cantrips, you can drop this in response to punish their greed
Deaths Shadow, Liliana of the Veil, Blood Moon, Leyline of the Void, and Omnath, Locus of Creation all get cleanly answered by Purge, so I expect this to be a mainstay in the sideboards of White decks regardless of what the metagame looks like
And since you know your opponents graveyards will be overflowing from all the milling, you can cast Rise of the Dark Realms and kill everyone with their own creatures
Multani, Yavimayas Avatar The most basic design that makes use of trample is a card that is capital-M Massive
This can lead to a quick barrage of attacks with reds powerful rush characters or defensive plays with green blocker cards