Knell, Beleaguered Escort

Haste

Whenever you scry or surveil, creatures you control get +X/+0 and first strike until end of turn, where X is the number of cards looked at while scrying or surveiling this way.

Whenever a player discards a card, surveil 1.

Whenever Knell attacks, you may draw a card. If
you do, discard a card.