Although there are some corner case disadvantages like the boost is set once it arrives, so if you increase the type it won't increase in size too
The only changes I'd consider making are more untapped lands, and Insidious RootsInsidious Roots
Assassin's Trophy offers most of the utility without the need to trigger delirium, and Eyeblight Ending is a dual-type (kindred / instant) removal spell that will even help trigger delirium
For example, Zirda may be in your starting deck even if your other permanent cards dont all have activated abilities
SamSam is good enough, making Foods and then making it cost less to sacrifice them, but FrodoFrodo has so many ifs, ands, and buts that you may never get around to actually drawing any cards with him
Very few things like boardwipes