Aris, the Unbearable Bard

Death touch, haste
Partner worth Alexa
When Aris enters the battlefield, target player
mills the top {x} cards of their library where {x} is the total mana spent to cast Aris.
Redistribution of Power {g}{b}{u}{t}: Each player
may cast a spell from their own graveyard for its converted mana cost. If Alexa is on the battlefield,
you may cast the spell without paying
its converted mana cost.