Ren, Master Magus

{2}, {t}: Return target creature card with "Magus"
in their name from your graveyard to the battlefield.
{x}, {t}: Search your library for a creature card
with converted mana cost X or less with "Magus"
in their name and put it onto the battlefield.
Then shuffle your library.
Whenever another creature with "Magus" in their name enters the battlefield, draw a card.
My disciples have studied across many planes, researching all kinds of magic and artifice.