Free to do but only sorcery speed and also only able to sacrifice X-1 things where X is your number of things
That being said, it will also be great in Standard play for overwhelming your opponents, provided you can get the right balance of +1/+1 counters and card draw
For example, if you control one creature and an opponent controls four, then you play Knight of Lost Causes going up to two creatures, you are way behind this turn because, at some point in the past the turn, that opponent controlled three creatures more than you
Lumiose City Stadium play has been an interesting aspect of Pokmon TCG 's meta, and Lumiose City could see play in a lot of decks: "Once during each player's turn, that player may search their deck for a basic Pokmon and put it onto their bench
The Figure of Destiny's abilities are not those that change copiable values, although they do generate the effect lasting until the end of the game