Angelic Knight

Angelic Knight gets +1+1 for every creature on
the battlefield. If Angelic Knight's power exceeds 25, destroy creatures until her power equals 25.
If Angelic Knight's power doesn't reach 25, place her back into your hand, and bring her out without paying her mana cost, when her power would equal 25.
I won't stand for an uneven fight. I'll even up the
odds for you.