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One mana, full hand information, and the ability to strip any nonland card before it ever hits the stack

Its useless against creature-centric decks but does a lot against various spellslinger strategies in Commander

They offer versatile deck building options, consistent performance in different areas of the game and power ceilings which border on unbeatable

Scalding Tarn

Kolghan's Command has some situational effects but the fact that you can land a draw step discard hit ensures the card gets a 2 for 1 most of the time while still doing the useful things you need it to do

Previously, Atraxa, Grand Unifier outdid this Tyrant, but with the trilands gone Atraxa's four color mana cost will probably be much harder to achieve on curve