a normal edh deck.
41 rrs, 50 swamps, a thrumming stone, a coat of arms, and some tutors.
Imagine all the plains are RRs
alternative: 50 swamps and 49 rrs.
general: marrow-gnawer
for normal play, id use 25 swamps, 45 rrs, and the marrow-gnawer, summing as 61 cards
note: tcg forces it to be all lowercase.