Daisy Duck also has a device and is tracking down an X on a map
And you can even gain some of that life back with cards like Glowing OneGlowing One and Lily Bowen, Raging GrandmaLily Bowen, Raging Grandma
For your two life you get reliability and that is most of the time the thing you want in your discard
The First Doctors ability to add +1/+1 counters is likely to mostly be used on creatures, but its nifty to think about putting it on Vehicles like the TARDIS
You can take a creature with just two counters on it to four, putting it above what your opponent would consider to be fair trade when you move to combat, leaving them with not many choices on what to do
It sets up counters, board wipes, or combo finishers with zero mana commitment on your turn