Venerated Loxodon is a rare Creature — Elephant Cleric card from Guilds of Ravnica Promos (PGRN), collector number 30p. Current market price: $0.60 (foil $0.43), TCGplayer market prices via Scryfall.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) When this creature enters, put a +1/+1 counter on each creature that convoked it.