The player may do as many mulligans as they like as long as they have cards in their Online Deck
4 Shiny Dondozo Water-Type Pokmon One of the best examples of a shiny variation being truly different in appearance from its traditional form is the Water-type Dondozo
Ampharos doesn't have a Poke-Power or Poke-Body but it does have two moves, the first move is called Acceleration Bolt and this move does 30 damage for only one electric energy card
It is likely too slow for certain formats, but I would be curious to see how some Dimir shells in Standard may use the card, if at all, to shut down removal and lock up the board slightly by giving you advantages
Greavard G - Healing Pheromone Heal 30 damage from this Pokmon
From design to competitive decks, Mega Starmie ex has seen some serious play in the post-rotation format in Japan, working well alongside Mega Froslass ex