Mermail Abyssnerei [MP18-EN118] Common

Mermail Abyssnerei [MP18-EN118] CommonSet: 2018 Mega Tins Mega Pack Card type: Effect Monster Rarity: Common Attack: 1200 Defense: 2000 (Quick Effect): You can discard this card, then target 1 WATER monster you control; destroy 1 other WATER monster in your hand or field, and if you do, the targeted monster gains ATK DEF equal to the destroyed monster's original ATK DEF, until the end of this turn. If this card is sent from the field to the GY: You can draw 1 card, then discard 1 card.

Now I have a belt of naga skin

Set: Born of the Gods Type: Instant Rarity: Rare Cost: {4}{W}{W}{W} Destroy all creatures and planeswalkers

sacrifice Chromium unless you pay {W}{U}{B}

Set: Conspiracy: Take the Crown Type: Creature — Merfolk Scout Rarity: Uncommon Cost: {2}{U}{U} Flying

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {5}{W}{W} Whenever a legendary permanent other than Yomiji

you may create a 1/1 blue Merfolk Wizard creature token

In times of war

"Ghouls smashed the door

1 Aqua-Type monster with the same Level as the monster Special Summoned by this card's effect

The Night Serpent tasted the warlock's ambition and savored the dark hunger in her soul

Set: Kamigawa: Neon Dynasty Type: Legendary Creature — Rat Pilot Rarity: Rare Cost: {1}{W}{B} At the beginning of combat on your turn

Set: Worldwake Type: Creature — Kor Artificer Rarity: Rare Cost: {1}{W} When Stoneforge Mystic enters the battlefield