Invasion of Ikoria has the same effect for only a single extra green mana, with the added benefit of being able to transform into Zilortha, Apex of Ikoria, which can allow you to defeat your opponents way more quickly
Whilst you do need to meet the requirement of having three legendary creatures on your side of the battlefield, this requirement is actually a bit easier to meet than it sounds because Kolvori herself counts towards that, meaning you only need two additional legendary creatures by her side
So, lets get stuck in and try not to be converted into machines as we go
But you have a much better ability than Telepathy
Drannith Magistrate [Best Hatebear for Commander Control] Drannith Magistrate doesnt fight the board
These cards are: Luxknight Breacher Petrified Field Edge of Eternities - Luxknight Breacher Luxknight Breacher is a 4 CMC creature card (3 mana of any color, 1 White) with power and toughness equal to 2