Why wont this red dot go away?

>>545532905
There's a level 30 one

>>545532964
>what does retain do for me here?
If you DONT use it that turn, you gain Shield, but if you DO use it, you do not gain shield.

>do i take the left?
If you are on Blue Pot, maybe. I'd take middle or right depending on your deck and how many times Vulture might accidentally be triggered anyway just by playing a 2 cost card