But 5 Black mana is pretty impossible to consistently produce in Limited
When Leyline Binding enters the battlefield, exile target nonland permanent an opponent controls until Leyline Binding leaves the battlefield
Legendary Creature - Peasant Halfling Color tag templates(None) Commander (CTRL to add secondary) Artifact Qty: 9 Price: $12.41 Arcane Signet : Add one mana of any color in your commander's color identity
Of course, drawing up to seven cards is nothing to sniff at, but when youre paying this much mana on your commander you want it to do a little more than that
It can even be very good against one of the best tier 1 decks in the format, UR Murktide, as it shrinks Dragons Rage Channeler, survives Lightning Bolt and removes cards to prevent Murktide Regent getting delved in at a discount
Blue holds up mana anyway, so holding up four for Aetherize isnt much of a tribulation