Did you know that you can make profit by trading steemmonsters card automatically? MonsterBot which made by Minnowbooster lets you buy - sell cards automatically. According to their statement trading bot is still experimental but users are satisfied with the Monster - Bot. To use bot you just need to have a minnowbooster account and you have to authorize buildteam via steemconnect. After authorization you need to deposit some steem and start setting up the bot. You can choose max-min buy - resell limit which is not risky at all. Sometimes people sell their card for a cheap price to sell it as fast as possible and this is where the best trading opportunities come from.