Sariel, the Lord of the End // Diabolos, the Nether Tyrant (2-108/J) [The War of Valhalla]

[J-Activate] Pay 5, discard three cards in your hand. [Activate] Pay 4 : Put a resonator in your graveyard into your field. It can attack this turn. At the end of turn, remove it from the game, if it's in a field or a graveyard. Diabolos, the Nether Tyrant (J) [Flying] [Enter] Destroy all resonators. Then put three resonators in your graveyard into your field. If you cannot choose three, you cannot put them. [Activate] Pay B2, banish two resonators in your field : Put a resonator in your graveyard into your field. It can attack this turn.