Inga and Esika {2}{G}{U}
Legendary Creature — Human God
Identity
Simic
EDHREC rank
#2,511
Cheapest printing
US$1.75
TCGplayer
Printings
4
Creatures you control have vigilance and "{T}: Add one mana of any color. Spend this mana only to cast a creature spell."
Whenever you cast a creature spell, if three or more mana from creatures was spent to cast it, draw a card.
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.