Roku, the Crowned Merciful

Avatar state — If you control two or more Avatars,
choose one of them, and the rest are put into their
owners' graveyards. At the beginning of your upkeep,
you may pay {w}{u}{b}{r}{g}. If you do, until end of
turn, Roku, the Crowned Merciful has all activated abilities from all Avatar creatures in your graveyard.
{r/w}: Target nontoken creature gets +1/+0 and
gain first strike until end of turn. When that
creature dies, create a 2/2 red Dragon creature
token.