Anya Melfissa, The Soulsword

First Strike, Trample
Equipment you control have "Equip Avatar
creature {0}. Equip this way only once each turn."
{t}: Until end of turn, Anya becomes an
Equipment with "Equipped creature gets +3/+3
and gains first strike and trample" and equip {2} that isn't a creature. (She retains her other
abilities and card types.)