This only works with Swamps, but if you have a card like Urborg, Tomb of Yawgmoth, which turns all your lands (and your opponents lands) into Swamps, you have a ton of mana at your fingertips
It made it difficult for the opponent to progress their game plan
Force of Negation as a three-of in the sideboard is for similar reasons, as I want to be ready to have at least a semblance of chance against decks like the Neoform deck, given that well have to deal with it for some time until it naturally bans itself out of the format
This is where my list is at currently: Creatures (6) Planeswalkers (3) Lands (26) Spells (25) This list is inspired by playing games with control decks Id built before against Andrew Cuneo and learning from the ways in which he smashed me
While I don't think this is drafting cube worthy I think it probably does still have more of a place in constructed cube than many of these other cards as a sideboard or graveyard support tool in a known meta
So, you can send no more than 250 cards per month for free