Whenever you copy an instant you get to put a +1/+1 counter on Kalamax
Whether it's protecting your creatures, cheating finality counters, or just smashing with big green creatures (my favourite thing to do), these are definitely good excuses to splash out on a precon or two
Which, of course, youll spend on booster packs to get more spare cards you dont need
Lifecrafter's Bestiary Green has a good amount of artifact hate, but it certainly doesnt loathe this one
But that's hard to make work and easy to disrupt with removal of the Commander himself or by the Anthems (Glorious Anthem), Auras (Rancor) or Equipment (Bonesplitter), and if you sweep you really break him with mass removal, and recasting a five cost is rough
Reaching for bear typal with cards like Wilson, Refined Grizzly and Ayula, Queen Among Bears makes perfect sense, but plenty of EDH staples like Mentor of the Meek and Manglehorn fall within this mothers protection