Negotiate someone else's token into a deathtoucher for two mana, sounds like a Doom Blade of a deal
$0.35 Liquimetal Coating The Brothers' War Retro Artifacts $24.99 Chalice of the Void Masters 25 $2.29 Devourer of Destiny Modern Horizons 3 $9.99 Kozilek's Command Modern Horizons 3 $2.29 Glaring Fleshraker Modern Horizons 3 $64.99 Ugin, Eye of the Storms Tarkir: Dragonstorm $5.99 Voltaic Key 2011 Core Set $0.49 The Stone Brain The Brothers' War $6.99 Eldrazi Temple Modern Masters 2015 $2.99 Disruptor Flute Modern Horizons 3 $20.99 Ugin's Labyrinth Modern Horizons 3 $0.49 The Filigree Sylex Phyrexia: All Will Be One 0 results found
Consecrated Sphinx While its one of my favorite pet cards in Commander, Consecrated Sphinx has always been (in my opinion) a bit too expensive as it usually floats around $40 to $60
A note about Tap and Untap MTG In summary, tap and untap are keyword actions that rotate a card sideways and rotate it back to its standard position
Usually, this means that they are less optimized but more flexible
With Ancient Copper Dragon, I hope the dice are in your favor