User blog comment:B214/Volume 22 spoilers/@comment-82.48.158.172-20161109231053/@comment-202.80.212.211-20161110040911

Since the others have given their opinions for number 1 question, i will just give mine for the 2nd one

I think it's quite possible to do that since Grendel is extremely durable, however Grendel is so vindictive so chance is Tsubasa will be having hard time controlling him and his power