Lorwyn Eclipsed Commander Auntie Ool, Cursewretch Blight Curse Ashling, the Limitless Dance of the Elements Edge of Eternities Commander Kilo, Apogee Mind Counter Intelligence Szarel, Genesis Shepherd World Shaper Final Fantasy Commander Tidus, Yuna's Guardian Counter Blitz Cloud, Ex-SOLDIER Limit Break Terra, Herald of Hope Revival Trance Y'shtola, Night's Blessed Scions & Spellcraft Tarkir: Dragonstorm Commander Felothar the Steadfast Abzan Armor Shiko and Narset, Unified Jeskai Striker Zurgo Stormrender Mardu Surge Teval, the Balanced Scale Sultai Arisen Eshki, Temur's Roar Temur Roar Aetherdrift Commander Temmet, Naktamun's Will Eternal Might Saheeli, Radiant Creator Living Energy Duskmourn: House of Horror Commander Winter, Cynical Opportunist Death Toll Valgavoth, Harrower of Souls Endless Punishment Zimone, Mystery Unraveler Jump Scare
Here's Beanstalk Giant in the stylish new Adventure frame
To double a creature's power, that creature gets +X/+0, where X is that creature's power as Double Trouble resolves
Midgame often brings plenty of threats from players trying to disrupt your board, so having removal spells or protective instants like Heroic Intervention is a must