We Need 5 Extra Crap 10 manas Spells Or Chance 1 Mana Minion

This? is a personal goal that I have yet to execute on.
I promised you nothing, and you flatter yourself to think that I ever would.
I’ll just keep living rent-free in your clearly fixated mind. #ignored

What 9 mana spells are there that would make tendrils still viable? Any?