mtg arena how to put cards in sideboard Why can't I more than 7 into my sideboard? Did Wizards change the rules? : r/MagicArena PSA: you can look at

Aluren decks made extensive use of it because they could fetch any of the combo pieces other than Aluren itself, and some versions used Academy Rector allowing them to get Aluren as well

The sooner the better because the longer its out the more Warrior tokens you can create

With a deck that loves to cast big creatures, the rest of a Ruby Commander deck should focus on empowering those big-mana critters and ensuring that you're able to refill your hand after you cast all those ramp spells

This effect is incredibly flexible, and can even be used to currey favor with opponents, allowing them to use their cards to remove other players permanents more efficiently