Hakari, Idle Gambler

Pay 6 Life: Roll a dice, Hakari gets +X/+X until end of turn and put X Jackpot counters on Hakari,
where X is the result. Whenever you roll a 6, remove all Jackpot counters from Hakari and untap Hakari, he gains indestructible and lifelink until end
of turn, exile the top six cards of your library, then add six mana in any combination of colors, you may cast those cards as though they had flash this turn.

Remove 6 jackpot counters from Hakari: The next time you would roll a dice, roll another.