mtg cards like conjurer's closet balance it's all about balance, bestie then return that card to the battlefield under your control. Conjurer's Closet | Double Masters

I have cut Jegantha as it doesn't add that much to the cube experience

Ephemerate There are plenty of decks where I take Ephemerate first over Blacksmiths Skill, and thats because in creature heavy decks, having your protection essentially double up as value is too good to pass up

As long as you have enough artifact ramp or mana dorks, you can pay the cumulative upkeep cost for quite some time before having to sacrifice it

Fevered Suspicion costs an incredibly high 8 mana, but its less than a dollar to buy

A chapter ability doesn't trigger if a lore counter is put on a Saga that already had a number of lore counters greater than or equal to that chapter's number