If a land you control produces multiple mana of more than one type, Vorinclex's first triggered ability adds one mana of only one of those types
When you trade, you really only have the option of looking at exactly what they have, and then they need to want something that you have, and then the values of those items needs to be equal (heaven forbid it be even $2 off, otherwise no deal!)
With legendary team-ups to take on the invaders, Planeswalkers faced with their Phyrexianized friends-turned-foes, and the future of the Multiverse forever changed, March of the Machine is the action-packed one last stand against Phyrexia
Is It Possible To Trigger a Saga at Instant Speed
(2007-10-01) Although this ability triggers when the Incarnation is put into a graveyard from the battlefield, it doesn't *specifically* trigger on leaving the battlefield, so it doesn't behave like other leaves-the-battlefield abilities
Beyond these, the rest of the build is cheap and cheerful