Yoshai, mana king

Vigilance, Flying, Hexproof
When Yoshai, mana king enters the battlefield,
you gain {w}{u}{b}{r}{g} to
your mana pool.
{t}{10} you gain {w}{u}{b}{r}{g}
{ut}{c} Yoshai, mana king gets +4-3 until end
of turn.
{x}{x}{x} Yoshai, mana king deals X damage to
each of your opponents creatures.