At eight mana each, they're massively overcosted now of course, especially because you have to pay mana each turn to keep them on the board
Regardless of how the permanent phases in and out, an important thing to keep in mind is that the permanent does not move to another zone from the battlefield when it phases out, it just starts being ignored by everything happening in the game
6 Displaced Dinosaurs (Surge Foil) Don't lose your prehistoric pals
Sometimes it will turn something that couldnt attack into an attacker, and I havent even mentioned how good this effect is when you have other Roles and Auras around on your board
Jacked Rabbit is perhaps the best example of a token generator in Family Matters, but Murmuration, Elspeth, Sun's Champion, and Siege-Gang Commander are all great for making tokens
I like it when my big bad also gives me some card advantage, such as blowing up annoying permanents