Shard of Bravery says hello, and goodbye.
6 SoBr, 6 Relics, 6 of these, the rest Precogs and Time towers, Fire mark. First or second turn win basically every single match.
Actually, if you have 6 of these in deck, you have a very high winrate of winning no matter what other cards you have. If you draw one of these in the first 8 cards, you win every time.