The best part about Marvel decks is the use of Energy with your marquee artifact isnt even the only way to win, as Marvel decks pack other cards like Whirler Virtuoso, Architect of the Untamed, or Aethertorch Renegade
Sacrificing five creatures sounds like a lot for a tutor, but one Fleshbag often kills three or four creatures, and Lagomos provides free sac fodder on its own, even if you cant make the tutor ability work
Temple Bell Yet another group hug effect, Temple Bell draws one less card than Font of Mythos but it's cheaper and you can turn it on at will
If the spell instructs another object to deal damage, its controller won't gain life when that damage is dealt
You get lots of control over which sagas go away and which abilities you repeat
So with all that in mind I started constructing my deck, pulling what I feel are the best slivers from each casting cost and seeing how the curve shaped out