Lucina, Daughter of Fate

Partners with Chrom, Father of Change. (When
this creature enters the battlefield, target player may
put Chrom, Father of Change into their hand from
their library, then shuffle.)
At the beginning of each combat step, Lucina, Daughter of Fate gets +2/+0 and first strike until
end of turn. If you control a creature named
Chrom, Father of Change, you may have that
creature gain +2/+0 and first strike until end
of turn as well.