It boosts the power of his stellar 'mons Raichu, Electrode and Electabuzz by moving all Lighting Energy from the benched Pokemon to one of those stars
Summon: BahamutSummon: Bahamut is the obvious juggernaut card that we want to get out as many times as possible
Once you select Jegantha, the Wellspring, Arena asks if you want Jegantha to be your companion, and it reminds you of the deck building requirements
In between those is Zantetsuken, an ability that means "Whenever this creature deals combat damage to a player, that player loses the game." Thats just nasty, especially if you find a way to give Odin Trample or Flying
5 Raichu BREAK By taking a look at the relatively low HP and significant damage on this card, it is clear that Raichu BREAK is meant to be a grand finale-pokemon
In my opinion, this is the main reason why TCG players got so mad when Pocket first stepped onto the scene