mtg dredge commander deck delver DREDGE THE MIRE X 1

If that spell would be put into a graveyard, exile it instead

The word each on Twisted Sewer-Witch makes it one of the best enchantment role token generators and is mean when combined with tokens from Lord Skitter and a creature sacrifice outlet

This shapes the gameplay as you have to plan ahead, knowing that your summons (and your opponents) wont be around forever

Its not quite there, but its the first fancy version of this blue sorcery, only being printed in Conspiracy: Take the Crown and Mystery Booster so far, so I expect this to be a good chunk more than that base price

Consider The Card's Demand Finally Finally, it's essential to consider the demand for your Magic cards