Melody, Orchestra of One

During each player's upkeep, whenever another
ability triggers, Melody gets +1/+1 until end of
turn.
{4}{r/w}, {t}: Create a colorless Instrument
enchantment artifact token with "At the
beginning of your upkeep, choose one: This
artifact deals 1 damage to target creature; or
target creature gets +1/+1 until end of turn;
or target player gains 1 life."