Your particular style of assassin deck might not find all of these cards to be equally useful
They will get to pick out cards of their favorite Pokemon
Another Honorable Mention: Wild Nacatl Ive got another honorable mention to discuss before we get started, the best Naya card in the history of competitive Magic: Wild Nacatl
Dragon Shield Outer are oversize, whereas Dragon Shield Matte/Dual/Art/Classic are standard outer sleeve size

Advanced Search Sets Random Syntax Prowling Felidar Quest for the Necropolis Rabaroo Troop Rampaging Baloths Rest for the Weary Retreat to Coralhelm Retreat to Emeria Retreat to Hagra Retreat to Kazandu Return of the Mole Man Ride the Shoopuf Roaring Earth Roil Cartographer Roil Elemental Ruin Crab Sapling Nursery Sazh's Chocobo Scrib Nibblers Scute Swarm Scythe Leopard Scythecat Cub Seedship Agrarian Seer's Sundial Serpentine Shoal Serpent Skyclave Pick-Axe Skyclave Shade Skyclave Squid Snapping Creeper Snapping Gnarlid Soul Stair Expedition Sporemound Springheart Nantuko Steppe Lynx Stone-Seeder Hierophant Sunspring Expedition Sunstar Expansionist Surrakar Marauder TL;DR (playtest) Tam, Observant Sequencer Tato Farmer Tatyova, Benthic Druid Territorial Baloth Territorial Scythecat Territory Culler The Necrobloom Tideforce Elemental Tifa Lockhart Tireless Provisioner Tireless Tracker Tomb Hex Toph, Earthbending Master Trench Behemoth Trove Warden Turntimber Basilisk Undergrowth Champion Vinelasher Kudzu Wave-Wing Elemental Weather Maker Werewolf Mage Lightning Windrider Eel Zendikar's Roil Zimone, Mystery Unraveler

As usual, I have the ins and outs for each deck, complete with reprint evaluation, individual deck strategies, and even some new card hype