While one mana is pretty easy to pay, the ward effect has the potential to keep your creature protected across several turns, or at least tax your opponent so they cant do multiple things in a turn
Because thats where youre going if you cast Winota with two or more creatures attacking
Uncommon or Mythic, thats your odds
Of the eight Commander cards that are found in booster packs - and not in Urza and Mishra's preconstructed Commander decks - three of them revolve around the colour
It is, however, one of the better payoffs for Max speed, and potentially a viable Commander if you want to get to Max Speed as soon as possible
Able to buff your Rats and provide card advantage, this card doubles as both a win condition and an engine for Rat Typal strategies