Wound Reflection isnt exactly lifegain synergy, but it synergizes well with our other synergistic cards like Blood Artist incredibly well
This shows you that there are many ways to craft a format crushing Urza deck
With the addition of Liquimetal Torque, you have twice as many copies, and you have a commander like Oswald that rewards you for playing them like no commander before
nothing else doubles up equipment triggers without some additional qualifier (it has an enters ability for Panharmonicon, a saboteur ability for Felix Five-Boots, etc.)
While its tough to know exactly how much impact it will have in Commander, being able to play a land and phase out a creature that you need to protect or a problem controlled by one of your opponents feels pretty cool
This land lets you add three generic mana to your mana pool, with the extremely mild stipulation that you can only use the mana on artifacts