Riko's White Whistle

•{t}: Add {w}{u}{b}{r}{g}. Spend this mana only to
cast spells with the names Riko, Reg, or Nanachi.
•{2}, {t}: Choose a creature you control named
Riko, Reg, or Nanachi. That creature gains protection from the color of your choice
until end of turn.
•If Riko's White Whistle would be put into a graveyard from anywhere, instead transform it
into Prushka, Bond Forged and attach it to a
creature. That creature gets +2/+2 and gains
lifelink.