Jarff, Cunning Eccentric

This spell costs {x} less to cast, where X is the amount of life you gained this turn.
At the beginning of your upkeep, gain 1 life.
Whenever you gain life, opponents may pay
{p/c}{p/c} to gain that much life. Gain 1 more life
for each player that does this.
{t}{4}Create either a Splepard or an Aevroyne.
{t}{4}{p/c}Give an opponent a high five! if you spent life to do this, create a Lula creature token.