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 - $3.10
Lightly Played - $2.50
Moderately Played - $2.20
Heavily Played - $1.90
Damaged - $1.60
Near Mint Spanish - $3.10
Lightly Played Spanish - $2.50
Moderately Played Spanish - $2.20
Heavily Played Spanish - $1.90
Damaged Spanish - $1.60