I assume the 40 lands were mostly chosen so you have the right number go into the graveyard when you mill yourself
The first choice for building a Commander deck is generally the commander, this is where your color identity comes from, and you add both partner commanders together to get the color identity
How long is your Grim Monolith realistically going to survive
Limitless Potential Thankfully, the door isnt totally closed on You Make the Card for MTG just yet
Similarly, Amano's iconic art for Final Fantasy 4's Cecil Harvey has been repurposed for one of Magic's strongest partner commanders, Tymna the Weaver, which has only ever been reprinted once before this
Alesha, Who Smiles at Death is a mono-color card as far as its casting cost goes (you only need and generic mana to cast it) but its ability costs : you'll have to pay either , , or if you want to put Alesha's trigger on the stack