Kenji and Jacob

If Kenji and Jacob's toughness ever drops below
half, transform Kenji and Jacob
{t}{1} Place a +1/+1 counter on Kenji and Jacob
{x}{x}{x}{2}{u} Search your library for X land cards
and place them on the battlefield tapped. Then shuffle your library
{t}{1} Exile target creature with toughness less than
that of Kenji and Jacob. Return it to the battlefield under your control
when Kenji and Jacob leave the battlefield.