Dragon Tempest is a uncommon Enchantment card from Iconic Masters (IMA), collector number 125. Current market price: $3.23 (foil $12.38), TCGplayer market prices via Scryfall.
Whenever a creature you control with flying enters, it gains haste until end of turn. Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.