If your commander has haste, youll often be able to equip it and attack in the same turn
Four mana seemed like the magic number for planeswalkers at the time, and it was especially shocking that the card could grant you an emblem as soon as it entered the battlefield
The mechanic is all about changing into other things, so Shapeshifter
Thats usually a solid 4-for-1, though you can always foster goodwill by letting an ally ramp instead
Hitting for one is weak but better than nothing and likely to get through and nibbling loyalty off planeswalkers is pretty good, when equipment comes into the picture however flying becomes outstanding and the low power far less relevant
For anyone scouring the galaxy, you could even get your gloves on something infinitely mighty: a Headliner card, The Soul Stone