mtg final fantasy holiday edition Magic: The Gathering Magic: The Gathering®—FINAL FANTASY™ Holiday

As a Legendary, it's not too easy to find, and TCGPlayer lists the current market value for Sisu: Divine Water Dragon at $31.96

116 $0.08 He's a Tramp 117 $1.66 The Return of Hercules 118 $0.37 Ink Geyser 119 $0.08 Emerald Coil 120 $0.09 Grandmother Fa 121 $0.08 Queen of Hearts 122 $0.06 The Matchmaker 123 $0.07 Denahi 124 $0.04 Stabbington Brother 125 $0.20 Belle 126 $0.04 Cy-Bug 127 $0.07 Stabbington Brother 128 $0.05 Card Soldiers 129 $0.06 Cogsworth 130 $0.06 Toby 131 $0.05 Beagle Boys 132 $0.12 Li Shang 133 $0.10 Moana 134 $0.06 The Phantom Blot 135 $0.16 Beast 136 $0.87 Mushu 137 $0.13 Maurice 138 $0.19 Goofy 139 $0.09 Lyle Tiberius Rourke 140 $0.43 Mulan 141 $0.73 Baloo 142 $0.65 Ratigan 143 $0.05 Sir Kay 144 $0.14 Milo Thatch 145 $0.04 Edgar Balthazar 146 $0.10 We've Got Company

Tidus himself isn't going to be the star of this deck but he should be a useful tool for creating an impressive board state

You should also watch out for the self-destruct