This will stick around for several turns and gives you a reliable blocker thats incredibly annoying to remove
Other roleplayers in that deck were Elvish Warmaster and Gala Greeters for a very token-focused variant on Elves
However, now there are ways to have these abilities trigger that don't involve the planar die at all
Archangel Avacyn Arlinn Kord Arlinn, Embraced by the Moon Avacyn, Angel of Hope Avacyn, the Purifier Balefire Dragon Bloodline Keeper Brisela, Voice of Nightmares Chandra, Dressed to Kill Craterhoof Behemoth Cultivator Colossus Edgar Markov Emrakul, the Promised End Garruk Relentless Garruk, the Veil-Cursed Gisela, the Broken Blade Grimgrin, Corpse-Born Griselbrand Jace, Unraveler of Secrets Liliana of the Veil Lord of Lineage Mirrorwing Dragon Necroduality Olivia Voldaren Sigarda, Host of Herons Snapcaster Mage Sorin, Imperious Bloodlord Tamiyo, Field Researcher Temporal Mastery The Gitrog Monster The Meathook Massacre Through the Breach Wrenn and Seven
Sauron the Dark Lord packs unique ability on top of unique abilities, which makes him really fun to play
Aggressive decks are great answers to UW Control