Adaptive Exploration

At the beginning of combat on your turn, you
may discard your hand.
If you discarded your hand this way, until end of
turn creatures you control gain Forestwalk if you discarded a green card, Plainswalk if you
discarded a white card, Islandwalk if you
discarded a blue card, Swampwalk if you
discrded a black card, Mountainwalk if you
discarded a red card, and Wasteswalk if you
discarded a colorless card.