Krolax, Master of Ikoria

Companion — Your starting deck contains at
least ten different cards with Companion (If this
card is your chosen companion, you may cast it once
from outside the game.)
Whenever you sacrifice a creature because of the
"Legend Rule" for the first time each turn, you
may search your library for a Legendary creature
with converted mana cost up to 2 higher, put it
into the battlefield, and shuffle your library.