Guild Summit is a uncommon Enchantment card from Guilds of Ravnica (GRN), collector number 41. Current market price: $0.28 (foil $3.15), TCGplayer market prices via Scryfall.
When this enchantment enters, you may tap any number of untapped Gates you control. Draw a card for each Gate tapped this way. Whenever a Gate you control enters, draw a card.