Myriaday Dragon (BETB-EN035) - Beyond the Brave 1st Edition

Once per turn, during the End Phase: You can pay 100 LP; place 1 Myriaday Counter on this card. Once per turn, during your Main Phase: You can place 1 Myriaday Counter on this card for every 1000 points difference between your LP and your opponent's. Gains 10000 ATK/DEF while this card has 10 or more Myriaday Counters. If this card would be destroyed by battle or card effect, remove 1 Myriaday Counter from this card instead.