He can also only make token copies of creatures, while Saheeli lets you make copies of any permanent
By tapping your tokens and utility creatures, you can often cast this for a mere two or three mana, completely resetting your board after a wipe
Being a human plus artifact makes this card fit a lot of different decks, including humans, affinity, stax, and Death & Taxes
Each creature you control of the chosen type other than this Vehicle gets +1/+1
All you have to do is combine that with Willowdusk, and youve got an engine that will just keep on giving
A: Deadpool's has Tarmogoyf's ability that sets its power and toughness, so that will override Deadpool's printed power and toughness, and Deadpool's power and toughness will be based on card types in the graveyard