Quanthrucsh, Unshackled Horror

Flying, Haste
Quanthrucsh, Unshackled Horror enters the battlefield with X charge counters where X is the amount of mana spent to cast Quanthrucsh.
{1}{u}, {t}: Each player draws X cards.
{1}{b}, {t}: Each opponent loses X life.
{1}{r}, {t}: Quanthrucsh deals X damage to target creature or planeswalker.