With a little deck manipulation, you can very easily swap one or two mana spells for giant bombs like an Eldrazi creature or even an Omniscience
A +5/+0 for two mana is a good deal even before you factor in the boosts from prowess and similar effects, which make it incredible value
Swords doesnt need any synergy or support
(Equipment, Auras you control, and counters are modifications.) Whenever this creature attacks, other modified creatures you control get +X/+X until end of turn, where X is this creature's power
Ive mentioned this in other posts, but I look for sellers with great feedback and who are within a short distance of my home in Pennsylvania
This is a conversation that, interestingly, doesnt have a lot of discussion