It can bring out any creature and give it haste, turning a threatening attacker into a must-answer threat as early as turn two
Characters do not need to be dry in order to move to locations
This is useful because you know there will be a creature to use the equipment right away, and you can almost think of these equipment cards as creature spells when deck building
It's absolutely hilarious to see the look of despair in the fact of your opponents when you destroy their entire board, turn after turn, while your indestructible creatures (mainly mythic god creatures) continue to generate value
It's a massive list totaling 70 cards, but I hope you'll give it a read
Also in there are damage counters, coins to flip, and rather importantly, instruction manuals