If mostly you are dying with things still to do then you don't really need more cards, you need to be doing more sooner
Its not a bad late-game play: It doesnt need to tap to activate its ability, so you can cast it and sacrifice it in the same turn without haste enablers
Sacrifice this artifact: Draw a card
Because of its Standard ban, it was also included on the initial ban list of both Extended and Legacy when those formats were created, although it was eventually unbanned in Legacy and unrestricted in Vintage a couple years later
WotC has trademark registration on several words, phrases, and symbols on MTG cards, including all of the mana symbols
Sure you can lay him and bolt a threat down but then you have a two loyalty planeswalker that almost anything else will take down