On top of that, its one of the few planeswalkers that can actually be your commander, and its cheap to cast, only costing 3 mana, which is great to deploy early and start getting value from it and permanents
On the back end, you wouldnt really want to play a four-mana enchantment that grants the ability to create a single 1/1 flyer each time the enchanted creature deals combat damage
Not only does this cost 1 mana less than its counterparts in Chandra's Ignition and Waltz of Rage, but you can also cast it a second time while refreshing your hand
The real attraction to this card is the meme-worthy act of cursing yourself and buffing your board of Thopters or whatever
But Mark Rosewaters elegy for the mechanic is more nuanced: I consider it a noble but failed attempt. Is there a seed of this nobility that we can utilize, especially in Commander, with some of the cards printed since then