Jousting Partner

When Jousting Partner blocks, forge a Shield and attach it to Jousting Partner. (Create a colorless
Shield artifact Equipment token with "Equipped
creature gets +0/+1" and "Equip {1}".)
Stalk {4}{r}{r} (At the end of each block step, if there
is an unblocked creature attacking you, you may cast
this card for its stalk cost. If you do, choose an
unblocked creature attacking you. This creature blocks
that creature.)