pokemon card keldeo 2012 BW#6 Cold Flare EX Holofoil #019/059 this card is the perfect way to showcase your collection. Keldeo 26/73 - [Shining Legends]

2 Gargos, Vicious Watcher - Tangling Heads Gargos, Vicious Watcher is probably the first creature that comes to mind when you think of Hydra tribal commanders

Your other, realistic options for a solid Dragon-themed deck were Bladewing the Risen and Atarka, World Render (yeah, yeah, Zirilan of the Claw and the other four Fate Reforged Dragon lords I said realistic at the time)

Another very high contender for the most expensive cards in Unlimited is Chaos Orb

You naturally drop a lot of lands, allowing Valakut Exploration to create a lot of card advantage in the early and mid games, but the card easily supports your win condition when you try to close the game