Grindclock [Magic 2015] Magic Origins Arrows are only one way

Arrows are only one way to remove an enemy

Creatures your opponents control get -2/-2

Set: Conspiracy Type: Creature — Bird Soldier Ranger Rarity: Common Cost: {5}{U} Flying

Set: Alpha Edition Type: Creature — Vampire Rarity: Uncommon Cost: {3}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach

They each have flying and "This creature can't be enchanted

Grindclock [Magic 2015] Magic Origins Arrows are only one waySet: Magic 2015 Type: Artifact Rarity: Rare Cost: {2} {T}: Put a charge counter on Grindclock. {T}: Target player mills X cards, where X is the number of charge counters on Grindclock. Pray you never hear it chime.