Since it has flash, you can cast Misleading Signpost at any timebut doing so during the declare attackers step lets you get away with some shenanigans to throw your opponents off balance
Alternatively, you can go big by casting Affinity creatures like Thought Monitor for cheap, then converting them into powerhouses such as The Ten Rings
Land Color tag templates(None) Land (CTRL to add secondary) Sorcery Qty: 1 Price: $0.49 Over the Top Each player reveals a number of cards from the top of their library equal to the number of nonland permanents they control, puts all permanent cards they revealed this way onto the battlefield, and puts the rest into their graveyard
Its ability to trample over planeswalkers is also especially notable for Commander games
Legendary Enchantment Herald's Horn As this artifact enters, choose a creature type
Given how much card draw there is, its not impossible that you get that ultimate on the turn after you play Teferi