Alex, Dilligent Spellslinger

Partner with Ollie, Dutiful Knight
As long as Ollie, Dutiful Knight is on the field, Alex, Dilligent Spellslinger gains Shroud and "At the beginning of your upkeep, search your library for an Instant or Sorcery card, put that card in your hand, then shuffle. Instant and Sorcery cards you control gain rebound." Spells you control can't be countered.