Sereza, the Consuming Tide

Partner with Kasmias, The Endless Maw
When Sereza, the Consuming Tide enters the battlefield, each player exiles X cards from their
hand.
Whenever Sereza, the Consuming Tide is dealt
damage, each player exiles cards equal to the
damage dealt to it from the top of their library.
Put a +1/+1 counter on Sereza, the Consuming
Tide for each card in exile.