Lets check out which are the best
The fact that it can quickly turn around and even turn off activated abilities makes it even more worthy of consideration
Daniel Holt (Commander Design) Daniel led the black-red Endless Punishment deck, which was rather bold of him as group slug instantly makes you the target of the table

Advanced Search Sets Random Syntax Aboshan's Desire Advanced Hoverguard Aerie Mystics Alexi's Cloak Algae Gharial Arcane Lighthouse Argothian Enchantress Armored Guardian Aspect of Mongoose Autumn Willow Benthicore Blastoderm Blurred Mongoose Cairn Wanderer Calciderm Calcite Snapper Cephalid Inkshrouder Citanul Centaurs Cloak and Dagger Clout of the Dominus Control Win Condition (playtest) Crashing Centaur Crystalline Sliver Deadly Grub Deadly Insect Deep Spawn Deft Duelist Diplomatic Immunity Drill-Skimmer Eladamri, Lord of Leaves Elvish Lookout Empyrial Archangel Favorable Destiny Form of the Squirrel Fountain Watch Frost Raptor General's Kabuto Ghosthelm Courier Giant Crab Giant Solifuge Gigapede Gilded Light Glimmering Angel Glimpse, the Unthinkable (playtest) Greater Auramancy Hada Spy Patrol Hanna's Custody Hawkeater Moth Helix Pinnacle Hisoka's Guard Homarid Warrior Humble Budoka Indomitable Archangel Inkwell Leviathan Isleback Spawn Ivory Mask Jolrael's Centaur Kalonian Behemoth Kashi-Tribe Elite Kodama of the North Tree Lightning Greaves Mage's Guile Master of the Wild Hunt Avatar Minotaur Illusionist Mist Leopard Moniker Mage Morphling Multani, Maro-Sorcerer Mystic Veil Naya Hushblade Neurok Commando Neurok Stealthsuit

With three ability keywords, Aurelia has some evasion and the ability to attack the turn she comes out, and then hang back and play defense
And no, I couldn't leave it off entirely