Its relatively cheap now, and is most commonly used in combo decks where it can find you a lot of specific creatures that you might need
Not only will you be drawing cards consistently, especially in a multiplayer format like Commander, but having no maximum hand size means youll also be able to hold onto them without having to discard to seven during your cleanup step
My 7/1 trampler with double strike is just a sin against life totals
The purpose is to just keep recycling negation traps with Mask of Darkness until you exhausted all of your opponents outs to your lock
Special Summon it, but its effects are negated (if any), then immediately after this effect resolves, Synchro Summon 1 Machine Synchro Monster using only that monster and this card
Even decks built around black Auras in MTG can make use of it with the right setup