Ragnaraika Bloom Secret Rare - Legacy of Destruction 1st Edition

Insect, Plant, and Reptile monsters on the field gain 300 ATK/DEF, also all other monsters on the field lose 300 ATK/DEF. During your Main Phase: You can activate 1 of these effects;
• Add 1 "Ragnaraika" monster from your Deck to your hand, then discard 1 card.
• Special Summon 1 of your "Ragnaraika" monsters from your hand, GY, or banishment, in Defense Position.
You can only use this effect of "Ragnaraika Bloom" once per turn.