Unable to sell minion on turn 1 - "this minion can't attack"

Unable to sell minion on turn 1 - “this minion can’t attack”

Was the 2/3 quilboar with lay of the land anomaly and power of the storm hero

i had the same thing happen to me: lay of the land anomaly (+1 spell in tavern). 2 ‘enchanted lasso’ spells in tavern, buy one to cycle, get dune dweller ele, try to sell it to buy second enchanted lasso but I am unable to