Lifegain decks win with any of the above payoffs
Its main ability, To Infinity, allows a player to match an opponent's hand size if they are running low on resources, providing an unparalleled burst of card drawing, along with playing cheap cards at will
There are just barely enough myr for an EDH deck, but of course there are also a series of myr-adjacent cards that can fit into these decks, all of which are pretty good if youre going this route
In that case, all creatures are exiled
Sometimes Hymn to Tourach outright wins the game because you force them to discard all their lands
This is a pretty well known strategy by now, but in case you arent familiar, Merlin cards benefit you when they are played and when they are removed from play