Wrenn's Resolve + Reckless Impulse + Light Up the Stage The trifecta of Wrenn's Resolve, Reckless Impulse, and Light Up the Stage should be in virtually every cast-from-exile deck, for these are the most efficient draw spells in the archetype
Indatha Triome, Ketria Triome, Raugrin Triome, Savai Triome, Zagoth Triome The Triome lands are not a surprising selection
Morcant's Eyes is a green version of that effect, with its best uses being that many elf decks arent keen on drawing Llanowar Elves on turn 5, so you can put them into the graveyard and profit from it on a later turn, or by playing cards that get stronger the more creatures are in your yard
If a player can't gain life, that player can't exchange life totals with a player with a higher life total
Card Mod is one of many reasons why you might want to make sure you grab all of the rare and missable Triple Triad cards, in fact
The culmination of effects is a draw-two and 2 extra mana per turn, which is well worth the investment in decks set up to use the mana ability