When Niko Aris enters, create X Shard tokens. (They're enchantments with ", Sacrifice this token: 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.