Ellie, Brick Master

Partner with Joel, Ruthless Brute (When this
creature enters the battlefield, target player may put
Joel, Ruthless Brute into their hand from their library,
then shuffle.)
Whenever Ellie, Brick Master attacks, all other attacking creatures gets Skulk until end of turn.
The first time each turn a source would deal
damage to Ellie, Brick Master, that damage is 0.