mtg dominaria set booster box Magic: The Gathering including one retro Dominaria Remastered Collectors Booster Box

1 Cloudshredder Sliver

If you don't want to use her effect (or it's just negated), you could just use Xyz Gift to draw 2 cards with no real drawback

Hibernation Sliver

Disclaimer: Pull rates are community estimates from 753 packs (~21 boxes), combining our own openings with three large community videos including a 500-pack opening a growing sample, though sub-percent rates remain uncertain and the largest opening is apportioned by observed cadence rather than counted card-by-card

Cards may come from different sets and printings and are suitable for casual or organized play when legal in the selected format

Target 1 Spellcaster-Type monster you control