Thryx, the Sudden Storm {3}{U}{U}
Legendary Creature — Elemental Giant
BlueCommander: legal
Identity
Blue
EDHREC rank
#3,498
Cheapest printing
US$0.23
TCGplayer
Printings
6
Flash (You may cast this spell any time you could cast an instant.)
Flying
Spells you cast with mana value 5 or greater cost {1} less to cast and can't be countered.
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
Prerelease
Thryx, the Sudden Storm
PTHB · 76s
TCGplayer market
US$26.94
Extended Art
Thryx, the Sudden Storm
THB · 309
TCGplayer market
US$3.50
Promo Pack
Thryx, the Sudden Storm
PTHB · 76p
Price not tracked
Thryx, the Sudden Storm
THB · 76
Price not tracked
Anime
Thryx, the Sudden Storm
J25 · 65
Price not tracked
Thryx, the Sudden Storm
CMM · 127
TCGplayer market
US$0.23
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.