*Cards are included randomly
BPhillipYork : This is an okay way to cheat out expensive creatures
There are other ways to power up a Dungeon deck: Safana, Calimport Cutthroat gives you valuable Treasure for mana acceleration, while the Dungeon Delver background turns up the benefits of exploration to an insane degree
(If they're equipped to the same creature, the abilities of the equipped creature will also trigger three times.) An ability of the equipped creature that triggers when a card is put into a graveyard "from anywhere" triggers twice only if (a) a creature card was put into a graveyard from the battlefield and (b) The Masamune is still on the battlefield and attached to the creature with the relevant ability
So you can't choose saga for cards that care about creature types, like Roaming Throne or Cavern of Souls
Sure, Demise brings a potential +2 to the Artifacts, but whats even more important is that it gives you an even better chance of opening Sanctum or Ignition, the two cards that win you duels