Sangan [MRD-069] Rare Water[-30] after damage calculation you can

after damage calculation you can remove from play that monster and this card

Set: Crossroads of Chaos Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 2200 Defense: 1400 1 Tuner + 1 or more non-Tuner Spellcaster-Type monsters When this card is Synchro Summoned

You can pay 1000 Life Points to send all cards on the field and in both player's hands to the Graveyard

you can remove from play this card from your Graveyard to Special Summon 1 "Red-Eyes" monster from your Graveyard

Sangan [MRD-069] Rare Water[-30] after damage calculation you canSet: Metal Raiders Card type: Effect Monster Rarity: Rare Attack: 1000 Defense: 600 When this card is sent from the field to the Graveyard, select 1 monster with an ATK of 1500 or less from your Deck, show it to your opponent, and add it to your hand. Then shuffle your Deck.