When Niko Aris enters the battlefield, create X Shard tokens. (They're enchantments with ", Sacrifice this enchantment: Scry 1, then draw a card.")

+1: Up to one target creature you control can't be blocked this turn. Whenever that creature deals damage this turn, return it to its owner's hand.

−1: Niko Aris deals 2 damage to target tapped creature for each card you've drawn this turn.

−1: Create a Shard token.