I just feel that there are three mana versions of this type of card that offer more value as they will be more able to return themselves, and a 2/2 flying haste for 3 is better than the things you can learn
This years printing of Aminatou, the Fateshifter took the core cards cards like Future Sight and Oracles Vault and added white and black, so I can do fun things like survive Duskmantle Seer longer than everybody else, get whatever I want out of Druidic Satchel, and break the symmetry of Zurs Weirding (since I dont need to draw cards)
Suit up your strongest creatures like Zidane, Tantalus Thief, then outvalue your opponents with Giott, King of the Dwarves
This blue planeswalker can come down for 4 mana and immediately mill 15 cards not bad on its own
Equip only as a sorcery.) If a player gains control of a creature equipped with an opponent's Ninja's Kunai without also gaining control of the Equipment, they cannot activate the ability it grants the equipped creature because you cannot sacrifice permanents you don't control
III Whenever an Assassin you control attacks this turn, create a 1/1 black Assassin creature token with menace that's tapped and attacking