Attuma, Atlantean Warlord
Legendary Creature — Merfolk Warrior Villain
What the Card Says
Other Merfolk you control get +1/+1. Whenever one or more Merfolk you control attack a player, draw a card.
What Does That Mean
This is a lord that strengthens your other Merfolk creatures by +1/+1 while also drawing you a card whenever any of your Merfolk attack a player.
The card draw triggers once per turn even if multiple Merfolk attack, as long as at least one Merfolk dealt combat damage to a player.
Why Is That Important
You'd include this in a Merfolk-focused deck as both a lord and card advantage engine.
It fits perfectly in aggressive Merfolk strategies where you're already attacking with multiple creatures—the lord effect pushes your team over the top while the card draw helps you refuel and find answers.
The combination of evasion-heavy Merfolk creatures with Attuma creates a tempo advantage: you're growing your board while accessing more resources than your opponent.