You can use it to interfere in counter wars, redirect good abilities to yourself, change the target of a removal spell, and so much more
Its not hard to see why
The Wise Mothman gives each player a rad counter whenever he enters or attacks
Ezio, Blade of Vengeance Our highest scoring Assassin caring dork is this Dimir colored five-drop with deathtouch on-curve 5/5 beater
An 8/8 creature is no joke, even in Commander, and it's especially threatening on an empty board
#2 Boromir, Warden of the Tower Boromir, Warden of the Tower Universes Beyond: The Lord of the Rings: Tales of Middle-earth, Rare Boromir, Warden of the Tower is a three-mana white, 3/3 with vigilance that automatically counters any spell an opponent casts if no mana was spent to cast it, which can be a lovely bit of interruption