We need to be aware of complexity creep While we've been working to make sure that individual mechanics are less complex overall, there's a trend in the last year of us making the sets complex in mechanical interaction
At the end of the day, its an incredibly narrow card that no other deck wants, so if they arent wheeling, youre in trouble
After all, this is one of the reasons why Nadu, Winged Wisdom was banned in MTG
four mana is a lot for an equipment, but The Aetherspark doesnt have an equip cost since the loyalty abilities take care of it
Wand of the Worldsoul lets you hold up only the mana rock, giving you ample opportunity to cast the protection spell while (hopefully) blowing out an unsuspecting opponent
For Commander, the two-cost instant shines with a target-rich environment and the general benefit of having token plus Equipment decks that go wide