Legacy Tibalt by Ark4n, 1st Place Legacy Challenge 2/6/21
The past weekend, Valki, God of Lies dominated both Legacy and Modern Challenges. I did expect Tibalt, Cosmic Impostor to make an impact, but didn’t expect it to be this large.
The goal of the deck is to cast a cascade card such as Ardent Plea, Violent Outburst or Shardless Agent as fast as possible thanks to Elvish Spirit Guide and Simian Spirit Guide. Once you cast one of these, you’ll inevitably cascade into Valki, God of Lies as it’s the only card with converted mana cost two or less in your deck. For some strange reason, you’re then able to play him as Tibalt, Cosmic Impostor, so you can have access to a seven mana planeswalker as early as turn one, which will proceed to win the game in a multitude of ways.
The rest of the deck is rounded out with the best threat in Legacy, Oko, Thief of Crowns, and some countermagic (that of course costs more than three) in Mystical Dispute, Force of Negation, Misdirection and Force of Will. These help assure that your combo is successful and can stop your opponent from achieving theirs.
The sideboard is quite straightforward, but in here you do see a card that’s cheaper than three: Lavinia, Azorius Renegade. Ark4n (also known as Legacy Council on Twitch) leveled the field and was ready for the mirror match with a card that he would be able to cascade into play when needed.
My personal opinion is that this deck is too powerful, and I expect a rule change which will sum the converted mana cost of the two sides of Valki, much in the same way that the interaction between Boom // Bust and Bloodbraid Elf was changed in Modern.