Be A Writer

Whenever a Saga, Scribe, or Philosopher enters
the battlefield under your control, destroy target artifact
{x}{g/w}-Target Philosopher or Scribe
with mana value X or less becomes a copy
of target Philosopher in a graveyard or in exile,
except it has base power and toughness 5/5,
is Green and White, and is an Avatar in addition
to its other types.