The three-drop 2/2 legendary artifact creature (tutorable) Yes Man, Personal Securitron taps to draw you two cards, and then swaps to a foe you can control of this and then it gets a quest counter
However, as Commander permits so many cards from across MTG 's 30-year history, many strong contenders come with scry effects that do see mainstream play -- like the 10 scrylands from Theros
Not only would your opponent have to pay mana to get through you, but the Archon itself has protection from white, making it a solid wall that was almost impossible to remove
Similarly, if Lightning leaves the battlefield and later returns, you won't be able to play the cards that were exiled the first time it was on the battlefield since it's a new object.
Grumgully, the Generous has a ton of redundancy for what he brings to the game, but a lot of that was in Green and Gev simply doesn't have the same kind of flexibility
Arcane Signet was a bit of mistake that started with a noble cause to give brawl mana fixing at two mana
