Skyclave Pick-Axe is a uncommon Artifact — Equipment card from Zendikar Rising (ZNR), collector number 309. Current market price: $0.10 (foil $0.23), TCGplayer market prices via Scryfall.
When this Equipment enters, attach it to target creature you control. Landfall — Whenever a land you control enters, equipped creature gets +2/+2 until end of turn. Equip {2}{G} ({2}{G}: Attach to target creature you control. Equip only as a sorcery.)