First strike (This creature deals combat damage before creatures without first strike.), haste (This creature can attack, and as soon as it comes under your control.)
Whenever Fervent Champion attacks, another target attacking Knight you control gets +1/+0 until end of turn.
Equip abilities you activate that target Fervent Champion cost less to activate.
Vintage
Standard
and 
as soon as it comes under your control.)
less to activate.