Advanced Search Sets Random Syntax Release date: 2020-06-17 Ugin, the Spirit Dragon Alpine Watchdog Angelic Ascension Anointed Chorister Aven Gagglemaster Baneslayer Angel Basri Ket Basri's Acolyte Basri's Lieutenant Basri's Solidarity Celestial Enforcer Concordia Pegasus Containment Priest Daybreak Charger Defiant Strike Dub Faith's Fetters Falconer Adept Feat of Resistance Gale Swooper Glorious Anthem Griffin Aerie Idol of Endurance Legion's Judgment Light of Promise Makeshift Battalion Mangara, the Diplomat Nine Lives Pack Leader Rambunctious Mutt Revitalize Runed Halo Sanctum of Tranquil Light Seasoned Hallowblade Secure the Scene Selfless Savior Siege Striker Speaker of the Heavens Staunch Shieldmate Swift Response Tempered Veteran Valorous Steed Vryn Wingmare Warded Battlements Barrin, Tolarian Archmage Cancel Capture Sphere Discontinuity Enthralling Hold Frantic Inventory Frost Breath Ghostly Pilferer Jeskai Elder Keen Glidemaster Library Larcenist Lofty Denial Miscast Mistral Singer Opt Pursued Whale Rain of Revelation Read the Tides Rewind Riddleform Roaming Ghostlight Rookie Mistake Rousing Read Sanctum of Calm Waters See the Truth Shacklegeist Shipwreck Dowser Spined Megalodon

Obviously, there are the usual Simic +1/+1 counter strategies, but you can also use Krajs ability to give it the activated ability of a creature that untaps itself, thereby creating an infinite loop
Winner winner, chicken dinner
At its absolute worst, The Soul Stone is a two-mana mana rock, which is Indestructible
Be warned that there are some cards that look like theyre friendly, but are actually traps, like Tempt with Discovery