Ginlyn, Swindling Tavernkeep

As an additional cost to cast this spell, pay 3 life.
{t}, Pay X life: Flip a coin. If you win the flip,
gain twice X life.
{2}{w/b}{w/b}: Create a 0/1 black Associate token with "Whenever you pay life, this creature gets +X/+0
until end of turn where X is how much life you
paid." Use this ability only if you paid life this
turn.