As is, the removal in Standard is so good that relying on untapping with Etali, Primal Storm on the battlefield is unreliable at best, and you need to untap with this six-drop unless you can give it haste to make playing it worthwhile
It gets used only occasionally, but not regularly
Like most Magic: The Gathering cards, the value of Wand of Orcus depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Forgotten Realms Commander)
With around 48 mono-blue cards that let you surveil and 153 that let you scry, theres no shortage of synergy to explore when building around Matoya
Soothsaying will be harder to remove as it's just an enchantment, but will cost more to activate each time
See ya there!