Saitama (062) - UE06BT: One Punch Man (UE06BT)

For every five cards in your sideline, reduce this card's required energy by Green x1 while in your hand.
Play this character set to active onto your field.
[Impact (3)] (When this character attacks and wins a battle, deal 3 damage to your opponent.)
[Damage (7)] (When this character attacks and deals direct damage, deal 7 damage instead.)
This character cannot be removed from the field by your opponent's abilities.
[When Attacking] Choose up to one character on your opponent's front line and sideline it.
At the end of the battle, if this character was blocking, return it to your hand.