Tapu Koko is of Electric and Fairy types, with the Ability "Electric Surge"
If this card is Normal Summoned or flipped face-up: Target 1 face-up monster on the field
See rule 701.34, Proliferate. 701.34a: To proliferate means to choose any number of permanents and/or players that have a counter, then give each one additional counter of each kind that permanent or player already has
Despite the lack of the rest of Lugia's body, this card's value is only a shade below the other half of this Lugia Legend card
C Common Left Arm Offering X SPELL If you have 2 or more other cards in your hand: Banish your entire hand
Over the years, Wizards has toyed with many different flavors of Sagas--variable number of chapters, all kinds of effects, creatures that transform into Sagas, Sagas that transform into creatures (especially in Kamigawa: Neon Dynasty) , and even an Enchantment Land that's also a Saga