Its a bit back on the list because it does guzzle mana like a thirsty duck in a desert
The combo can be executed with only a few cards, which makes it quite simple as well: Cast Venture Deeper , targeting your opponent Cast Merfolk Secretkeeper from adventure zone Cast Ashnods Altar Cast Chromatic Orrery to turn colorless mana into blue mana Cast Lier, Disciple of the Drowned from the commander zone Sacrifice Merfolk Secretkeeper , using Ashnods Altar Cast Venture Deeper from graveyard, using Liers ability Repeat this cycle infinitely until your opponent mills all their cards in a single turn using the mana produced by Ashnods Altar and Chromatic Orrery
Given that Commune with Nature sees virtually no competitive play in Standard, why is Commune with Beavers different
2-mana dorks with upside are playable in a variety of decks
(If this matters, you must have a very good reason for wanting to pay life.) If the target Equipment can't legally be attached to the target attacking creature when Raubahn's last ability resolves, the Equipment won't move
Every typal deck wants Urza's Incubator, so it demands a high price