merfolk mtg cards Token (1/1 - Hexproof) by Peter Mohrbacher Put a +1/+1 counter on each Merfolk creature you control Bloomburrow Commander Deck ELITE Green

When it enters the battlefield, each opponent will lose X life where X is your devotion to Black, and then you gain all of that life

No effects were "until end of turn"

This may be due to many reasons

The real highlight is her "Stagger" ability, of course, which doubles damage to a player and their permanents after she deals combat damage

First, let's check out the original list: Coven Counters | Commander | Wizards of the Coast Commander (1) 1 Leinore, Autumn Sovereign Creatures (38) 1 Abzan Falconer 1 Ainok Bond-Kin 1 Angel of Glory's Rise 1 Avacyn's Pilgrim 1 Bastion Protector 1 Champion of Lambholt 1 Custodi Soulbinders 1 Dawnhart Wardens 1 Dearly Departed 1 Elite Scaleguard 1 Enduring Scalelord 1 Eternal Witness 1 Gyre Sage 1 Herald of War 1 Heronblade Elite 1 Heron's Grace Champion 1 Juniper Order Ranger 1 Kessig Cagebreakers 1 Knight of the White Orchid 1 Kurbis, Harvest Celebrant 1 Kyler, Sigardian Emissary 1 Mikaeus, the Lunarch 1 Moorland Rescuer 1 Odric, Master Tactician 1 Orzhov Advokist 1 Riders of Gavony 1 Sigarda, Heron's Grace 1 Sigarda's Vanguard 1 Sigardian Zealot 1 Somberwald Beastmaster 1 Somberwald Sage 1 Stalwart Pathlighter 1 Trostani's Summoner 1 Verdurous Gearhulk 1 Victory's Envoy 1 Wall of Mourning 1 Wild Beastmaster 1 Yavimaya Elder Instants (6) 1 Beast Within 1 Inspiring Call 1 Return to Dust 1 Ruinous Intrusion 1 Swords to Plowshares 1 Unbreakable Formation Sorceries (8) 1 Bestial Menace 1 Biogenic Upgrade 1 Celebrate the Harvest 1 Celestial Judgment 1 Cleansing Nova 1 Growth Spasm 1 Hour of Reckoning 1 Shamanic Revelation Enchantments (4) 1 Citadel Siege 1 Curse of Clinging Webs 1 Curse of Conformity 1 Death's Presence Artifacts (6) 1 Arcane Signet 1 Lifecrafter's Bestiary 1 Moonsilver Key 1 Sol Ring 1 Swiftfoot Boots 1 Talisman of Unty Right out of the gate, I'll admit I'm kind of baffled by this list