In Ex Team Rocket Returns, we got one of the best Mewtwo cards of all time in Rocket's Mewtwo-ex, which features striking artwork and a pretty holo pattern

Synergy, Griefing, Staples, Building a Doran Deck ) Commander Starter Kits 1 (kick start your allied two-color decks for $25) Commander Starter Kits 2 (kick start your enemy two-color decks for $25) Commander Starter Kits 3 (kick start your shard three-color decks for $25) My current Commander decks (and links to decklists) : Skullbriar, the Walking Grave (how big can it get?) Phage the Untouchable (actually casting Phage from Command Zone!) Johan (Cat Breath of the Infinite) Niv-Mizzet, the Firemind (Chucks somewhat vicious deck) Previous Commander decks currently on hiatus : Yeva, Natures Herald (living at instant speed) Nefarox, Overlord of Grixis (evil and Spike-ish) Niv-Mizzet, Dracogenius (new player-friendly) Trostani, Selesnyas Voice (new player-friendly) Jarad, Golgari Lich Lord (drain you big time) Riku of Two Reflections (steal all permanents with Deadeye Navigator + Zealous Conscripts) Phelddagrif (Mean Hippo) Sigarda, Host of Herons (Equipment-centric Voltron) Bruna, Light of Alabaster (Aura-centric Voltron) Ruhan of the Fomori (lots of equipment and infinite attack steps) Ghave, Guru of Spores (Melira Combo) Glissa, the Traitor (undying artifacts!) Grimgrin, Corpse-Born (Necrotic Ooze Combo) Damia, Sage of Stone (Ice Cauldron shenanigans) Geist of Saint Traft (Voltron-ish) Glissa Sunseeker (death to artifacts!) Jor Kadeen, the Prevailer (replacing Brion Stoutarm in Mo Myrs) Thelon of Havenwood (Campfire Spores) Melira, Sylvok Outcast (combo killa) Konda, Lord of Eiganjo (The Indestructibles) Vorosh, the Hunter (proliferaTION) Progenitus (Fist of Suns and Bringers) Savra, Queen of the Golgari (Demons) Uril, the Miststalker (my more competitive deck)

Your Relentless Rats gets stronger the more copies of it you have in play, so if you have six Relentless Rats, each one of them is getting +5/+5, making them a three mana 7/7
Ive had a lot of fun piloting the mill version of this deck (which wins more often through combat than mill these days!), so if you still need convincing, check out my decklist out for yourself here
Menace Creature Enchantment - Saga Horror Summon: Shiva (As this Saga enters and after your draw step, add a lore counter