Bigger creatures, better effects, faster equipment, and more reasons to play all five colors
Ardyn, the Usurper Ashe, Princess of Dalmasca Clive, Ifrit's Dominant Dion, Bahamut's Dominant Edgar, King of Figaro Garnet, Princess of Alexandria Giott, King of the Dwarves Jill, Shiva's Dominant Joshua, Phoenix's Dominant Noctis, Prince of Lucis Queen Brahne Rosa, Resolute White Mage Rufus Shinra The Emperor of Palamecia The Lord Master of Hell Zenos yae Galvus
His power and toughness scale with the number of lands you control, which makes him big in Green decks naturally
if you can take an enemy's Strength down to 0, he won't be knocked out when challenging
Not only do your guys frequently cost nothing and come down in one big go giving you massive tempo you can also put a horde of 1/1 artifacts to really good use