In these Magic: The Gathering March of the Machine Commander Decks, each deck comes with their own ten-card Planechase deck, with cards that, generally speaking, benefit that respective deck's strategy
Normally, Im happy to leave Magic to the expert
Whenever a foe casts a spell, if it wasn't spend with mana
This is why cards like Doom Blade, Thoughtseize, and Dark Ritual are so iconic and integral to Constructed
That's not too hard in Commander
Red One of the things I havent liked much about reds ability to exile cards from the top of your library and then play them is that youve had to spend mana to do it, and that mana is something youd rather use to actually cast the spells