Risen Posion Master (Ditto)

Companion — Your starting deck contains only
cards with even mana values. (If this card is your
chosen companion, you may put it into your hand from
outside the game for 3 as a sorcery.)
When Risen Posion Master enters the battlefield,
each player mills four cards. Put a creature card
with an even mana value from among the milled
cards onto the battlefield under your control.