Each of these Guildmages comes equipped with a pair of activated abilities based on the the Guilds two colors, and these abilities can be activated by tapping mana and the creature

Most of the commanders in the competitive category (T0-4) have one or more of the following characteristics: they are part of a (game winning/infinite) combo (like Heliod, Sun-Crowned/Naru Meha, Master Wizard/The Gitrog Monster) they are a good mana outlet to win with infinite mana (like Kenrith, the Returned King/Thrasios, Triton Hero) they are a sacrifice outlet in the commandzone to start Protean Hulk-lines (like Dina, Soul Steeper/Minsc, Beloved Ranger) they are so called Toolbox-Commanders because they can search for their combo pieces or for the right answers (like Yisan, the Wanderer Bard/Captain Sisay) they are breaking parity by reusing cards (for example: graveyard recursion/reanimating cards, copying spells like Meren of Clan Nel Toth/Taigam, Ojutai Master/Muldrotha, the Gravetide) they are breaking parity by generating a lot of value (drawing a lot of cards like Chulane, Teller of Tales/Tymna the Weaver/Edric, Spymaster of Trest) they are breaking parity by fastly generating a lot of mana (like Kinnan, Bonder Prodigy/Selvala, Heart of the Wilds) they are breaking parity by cheating mana costs (like Narset, Enlightened Master/Winota, Joiner of Forces/Kaalia of the Vast) they are breaking parity by resource denial (stax, taxes, hatebears, discard, landdestruction) (like Grand Arbiter Augustin IV/Kroxa, Titan of Death's Hunger/Lord Windgrace/Anafenza, the Foremost) they are breaking parity by constantly killing or exiling important stuff of their opponents (like Circu, Dimir Lobotomist/Hapatra, Vizier of Poisons) Most popular deck archetypes in the first Tiers are: Combo Turbo/Ad Nauseum Stax/Hatebears Farm Reanimator (Hulk/Razaketh etc.) Storm/Spellslinger Toolbox/Pod Decks Wheel Polymorph/Evolution Control Midrange/Value Landfall When you want to learn more about cEDH specific Archetypes, we can highly recommend you the #3 part videoseries of Eisenherz: Commanders from Tier 6 to Tier 10 can also have some of the mentioned characteristics but mostly they can't do it, that efficient like the top commanders

Chaotic Transformation Sorcery Exile up to one target artifact, up to one target creature, up to one target enchantment, up to one target planeswalker, and/or up to one target land
At the start of the Damage Step, w hen this card attacks a monster with the same T ype as one of your a monster in the your G raveyard : D estroy that monster and all face-up monsters on the field with the same T ype as the attack target
Meanwhile, all the major players in the battle over the world legacies have gathered, and Armageddon is Nigh
It mitigates the opponents defensive move to finish off the Pokmon you want to protect