Mystic Remora has a long-term commitment, requiring you pay an increasing upkeep cost every turn, but it all but guarantees youll be drawing a few cards every round since it lets you draw a card when an opponent casts any noncreature spell
Once you have flipped Arlinn over, the -1 to Lightning Bolt a creature or player is amazingly good as well
Mind Control has always been a powerful removal spell since you steal the best threat at the table while denying it to your opponents, but this one cant be shaken off and eventually draws cards
Only the single card in exile grants the ability, and it isnt copied when you copy a creature
Heroic Intervention is among greens best combat tricks, but something like Tamiyo's Safekeeping can slot into your mana curve instead
Devourer of Destiny sets you up nicely to look through your deck, searching for those crucial cards