one piece booster box 08 S-Chinese OPC-08 black King One Piece - Two Legends

On declare attackers step everything is easy: 508.2a Abilities that trigger on a creature attacking trigger only at the point the creature is declared as an attacker In this rule the most important words are declared as an attacker

It has an admittedly narrow use case, but tripling your attack force ends games quickly, and it helps generate long-game advantages with cards like Solemn Simulacrum and Baleful Strix

Also hot take: I don't think running lots of +1/+1 counter support cards are good here

This dinosaur dragon also generates Treasure for you, providing the mana you need to cast the extra cards if you want them

Table of Contents show What is a Lifelink Creature in MTG

So, sunburst is good with Azorius Signet, since it produces two different colors of mana, while domain is good with Hallowed Fountain