Thrasios, Triton Hero {G}{U}
Legendary Creature — Merfolk Wizard
Identity
Simic
EDHREC rank
#2,553
Cheapest printing
US$18.03
TCGplayer
Printings
4
{4}: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.
Partner (You can have two commanders if both have partner.)
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
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.