You can notably use its second ability on Sazh itself, so it can attack as a 5/5 at minimum and potentially even more if you have other ways to place +1/+1 counters on it
Unless youre playing competitively, Commander games have a habit of going long
27 Spells Chrome Mox Gitaxian Probe Slitherblade Triton Shorestalker Gudul Lurker Mist-Cloaked Herald Judge's Familiar Siren Stormtamer Mausoleum Wanderer Bloodforged Battle-Axe Curious Obsession Curiosity Sigil of Sleep Invisible Stalker Looter il-Kor Legacy's Allure Daze Throne of the God-Pharaoh Umezawa's Jitte Walking Ballista Tempest Djinn Thassa, God of the Sea Grand Architect Hall of Triumph Master of Waves Whirler Rogue Force of Will 13 Islands Based on the recent PT (or MC or whatever they are now) win by Autumn there might be better ways to take this build
With so many whimsical sets, cards and an ever-changing scene, Magic: The Gathering stands as one of the most refined Trading Card Games around
2 Faithless Looting Once a fan favorite of Modern deck brewers everywhere, Faithless Looting was banned in 2019 due to it stymying deck diversity and seeing too large of a meta share
Meanwhile if you can give Lightning double strike (with Squall or Seifer) and any Equipment from this set, her Stagger ability can also turn the tide with a single combat round