It becomes less impressive in control decks where the 3 damage doesnt matter and this is just an expensive removal spell, though exiling any permanent is still quite useful
Though it has no bearing on the text of this play, Theseus is famous in Greek mythology for killing the Minotaur, so who better to play the role than master beast-murderer himself, Chevill, Bane of Monsters
Temple of Cyclical Time can transform again into its creature form, which is great for getting around commander tax
When an opponents legendary creature dies, you may want to tuck The Balrog, Flame of Udn under your library and use Grenzo, Dungeon Warden to get it back
Players on the whole, while they arent a fan of the cards, dont mind them existing for the subset that enjoy them
In a deeply interactive format playing only sorcery speed is annoying, and it also stops a ton of cards such as Cascade spells, Shelldock Island, Instant Madness cards and Bring to Light