Zithrox, Pumpkin Rider

Whenever you cast an enchantment spell, if you
don't control a creature named Pumpkin, create Pumpkin, a legendary 3/3 black and green Frog creature token with "Whenever you cast an enchantment spell, each opponent loses 1 life and
you gain 1 life."
{1}{g/u}: Zithrox, Pumpkin Rider and target Frog
you control can't be blocked this turn except by creatures with flying or reach.