Morophon, the Boundlesss cost-reduction ability does not work with generic mana , as it explicitly says in the card
While you can certainly find individual Pikachu cards that are worth more in other sets, these options offer excellent variety for Pikachu hunting
For some its just nostalgia: they traded cards at school or had mini tournaments with friends
Like Commander, the creature or planeswalker you select as your commander determines the color identity of the cards you can play in your deck, and also like Commander, you can only have a single copy of any particular card in your deck, other than basic lands
Additionally, collector numbers for ripple foil tokens with the MH3 set code as well as the front and back side order in which tokens appear differ in Creative Energy Collector's Edition, where tokens appear as follows: 1 Energy Reserve (Helper) // Servo token 1 Aetherborn // Servo token 1 Illusion // Servo token 1 Phyrexian Myr (Brudiclad) // Servo token 1 Treasure // Copy token 1 Gremlin (1/1) // Copy token 1 Copy // Gremlin (1/1) token 1 Thopter // Copy token 1 Construct (6/12) // Myr token 1 Aetherborn // Thopter token See the tokens and helper from Creative Energy and Creative Energy Collector's Edition (tokens and helper) in the Modern Horizons 3 Card Image Gallery
Greaves is such a popular card that two, more "balanced" versions have been printed since, in the form of Swiftfoot Boots and Lavaspur Boots, which added an equip cost and slowly eased up on the protection a bit
