mtg land in 40 card deck Alpha40 The V1 : r/oldschoolmtg I ran 20 lands in

In Commander, youd need to have lots of Mana open, or a way to generate unlimited blue Mana, to draw that specific number of card to reach 13 in hand

Goblin Chirurgeon from Fallen Empires , for instance, used Goblin sacrifice as a cost

Yes, that is also the main disadvantage to getting card advantage through drawing cards and yes, discard is also weakened by diminishing returns which card draw isn't, I am not comparing discard to card draw as a way towards card advantage, just stating the facts about cards in isolation

Textless Sothera, the Supervoid in Singularity Foil Sothera is a black hole so powerful that it consumed the very rules text of this card