In songhai I would wager time maelstrom would be stronger than this artifact since it is a spell, meaning it can be discounted (although there could be a card that reliably discounts artifacts in latter expansions). Every single discount counts since it is another turn earlier that you can get your OTK combo off.
However in Vetruvian, yeah the artifact is stronger just because it procts aurora’s tears. Since songhai is more spell based, having it being able to support a shell of arcanyst shenanigans (i.e. adjudicator, four wings magi, owl beast sage, avatar), I would wager time maelstrom is better via synergy.




