Garruk's Uprising is a uncommon Enchantment card from Starter Commander Decks (SCD), collector number 185. Current market price: $0.53, TCGplayer market prices via Scryfall.
When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.