If not, should they be swapped
Although higher numbers of Endurances are found in sideboards than in the maindeck, I wouldnt be surprised if decks include more Endurances maindeck already considering how much flexibility this card gives
Looking at my cube, there is critical mass for: Goblins (R) Humans (all) Warriors (WBR) And, with some effort, other tribes could get critical mass running only cards that are cubeable by themselves, keeping the Poison effect to a minimum: Soldiers (W) Wizards (U) Shamans (RG) Vampires (B) I'm fine with dedicating 2-3 slots per color so each of these tribes have a Lord or some other linear effect as a nod to play them (Goblin Chieftain, Champion of the Parish, Chief of the Edge) but I don't want this cube to be mainly tribal, just have an extra layer of synergy that cares about the creature type line at a low opportunity cost
Damn is both, which makes it far better than the sum of its parts
Fill Your Graveyard, Then Empty It Every time your Orc Army (or any other Army you control) deals combat damage to an opponent, Sauron, the Dark Lord, gives you the option to discard you hand and draw four more cards
Nissa has helped to establish an Omnath, Locus of Creation deck in Modern, which has kinda fallen off since the emergence of Nadu