As long as your devotion to green and red is less than seven, Xenagos isn't a creature.
At the beginning of combat on your turn, another target creature you control gains haste and gets +X/+X until end of turn, where X is that creature's power.
Near Mint - $4.700
Lightly Played - $3.800
Moderately Played - $3.300
Heavily Played - $2.800
Damaged - $2.400
Near Mint Spanish - $4.700
Lightly Played Spanish - $3.800
Moderately Played Spanish - $3.300
Heavily Played Spanish - $2.800
Damaged Spanish - $2.400