Gatewatch Beacon is a mana rock tailored specifically to planeswalkers
It reads like Pay nine mana: do some goofy nonsense and that came with this subtext: put this in your trade binder and hope someone who plays multiplayer wants it. Its possible that its too vulnerable to counterspells or the traditional problem that you might just not draw it or something, but its a hard reset that gets you out of any board and works in ways that can be pretty straightforward to abuse
Leaving mana open is that much more important and you will have some tap lands you need room to get down
Abattoir Ghoul Aegar, the Freezing Flame Aegis of the Legion Agent's Toolkit Angelheart Vial Anowon, the Ruin Thief Apex Altisaur Arcbond Archangel of Thune Archangel of Thune Archon of Sun's Grace Auntie's Snitch Aurora Eidolon Axelrod Gunnarson Backfire Barbed Servitor Baron Sengir Bellowing Aegisaur Binding Agony Black Panther, Claws of Bast Black Panther, Hope Enduring Black Panther, Most Dangerous Blazing Sunsteel Blessed Sanctuary Bloated Contaminator Blood Cultist Blood Hound Bloodlord of Vaasgoth Bloodroot Apothecary Body of Knowledge Bogardan Lancer Boros Mastiff Boros Reckoner Brash Taunter Broodhatch Nantuko Bushi Tenderfoot Cacophodon Captain America, Steve Rogers Cephalid Constable Cephalid Illusionist Chandra's Incinerator Chandra's Phoenix Chandra's Spitfire Chandra, Fire of Kaladesh Changeling Hero Coalhauler Swine Contested Game Ball Crag Saurian Crossway Troublemakers Darien, King of Kjeldor Daybreak Coronet Death Pits of Rath Deep-Slumber Titan Deftblade Elite Desmond Miles Diseased Vermin Donna Noble Dread Slaver Drogskol Reaver Drogskol Reinforcements Dromad Purebred Druid's Call Estinien Varlineau Eternal Thirst Expedited Inheritance Ezio Auditore da Firenze Faithful Squire Faithful Squire Fall of Cair Andros Family's Favor Favored Hoplite Feldon, Ronom Excavator
Most MTG cards have black borders, which show that they were printed in one of Magics many expansion sets
Clerics and angels are two of the most fun and powerful creature types in the current format, and Righteous Valkyrie supports both of them very well
