Kuribabylon (BROL-EN005) - Brothers of Legend 1st Edition

Gains 300 ATK/DEF for each "Kuriboh" monster you control and in your GY. You can only use 1 of the following effects of "Kuribabylon" per turn, and only once that turn.
• If you have more monsters in your GY than your opponent: You can Special Summon this card from your hand.
• During your Main or Battle Phase: You can return this card to the hand, and if you do, Special Summon 5 monsters (1 "Kuribah", 1 "Kuribee", 1 "Kuriboo", 1 "Kuribeh", and 1 "Kuriboh") from your hand and/or GY in Attack Position.