What is Party in Magic: The Gathering
This effect is very powerful on a commander because of the deckbuilding possibilities and the ability to mess with opponents trying to benefit from those triggers
If you had an unplayable hand you could mulligan for free
However, you dont need to pay for it like that: Dismember allows you to pay for Phyrexian mana with 2 life for each Phyrexian mana, making a total of 4 life lost
You can absolutely run Toski as a kindred-based deck, especially since Toski will help keep your hand full and can benefit from effects that boost its power and give it trample, letting you constantly push combat damage thanks to its indestructibility
Lord of Change A big, flying Demon that happens to be in blue, where Demons previously have not trodden, just tickles me