The Strongest Grandpa Ever, Dangerous Grandpa
Counter-Blast 1 to reveal cards from the top of your deck until a card with Dangerous Skill is found! Bind that card and activate its Dangerous Skill, then draw 1 card! Each Dangerous Skill can only be used once per fight, so include various Dangerous Skill cards to activate different effects each turn! When this card's Dangerous Skill activates, your vanguard gains the ability to attack consecutively! Make it known to your opponents by proclaiming "Stand Up, Vanguard!" and unleash a powerful double attack!

V Grandpa
This grandpa gains power when attacking higher-grade opponents! His Dangerous Skill is the ultimate comeback mechanicーallowing you to choose one rear-guard and give it Power +15000, creating an unstoppable attacker. When you're at 5 damage in your damage zone and that powered-up unit's attack hits, you immediately WIN the GAME! This isn't just about strengthening your units - it's a devastating one-hit victory condition that can completely reverse the course of battle when all seems lost!

Kazutoshi Soyama (Author)
The creator himself, Kazutoshi Soyama-sensei, becomes a playable card! This card has the power to return "Grandpa" characters to the deck or call them to the field! When this card boosts a rear-guard with its Dangerous Skill, you can place this card into the Soul to stand and power up that boosted unit, enabling it to attack twice in one turn! Make your characters wreck havoc on the battlefield!