You may exert Champion of Rhonas as it attacks. When you do, you may put a creature card from your hand onto the battlefield. (An exerted creature won't untap during your next untap step.)
The only way to finish the Trial of Strength is with a basilisk scale in hand.
Near Mint - $0.20
Lightly Played - $0.20
Moderately Played - $0.20
Heavily Played - $0.20
Damaged - $0.10
Japanese - Near Mint - $0.30
Korean - Lightly Played - $0.30
Foil Prices
Near Mint Foil - $1.00
Lightly Played Foil - $0.90
Moderately Played Foil - $0.80
Heavily Played Foil - $0.60
Damaged Foil - $0.50