For example, if there are two +1/+1 counters on Aerith Gainsborough and it gets three -1/-1 counters, you'll put two +1/+1 counters on each legendary creature you control when Aerith Gainsborough's third ability resolves
You can read much, much more about the Magic: The Gathering Lord of the Rings series here
1 Ash Blossom Is One of the Best at Countering When It Matters Shutting Opponents Out Their Strategies Has Never Been So Satisfying Ash Blossom & Joyous Spring, one of Yu-Gi-Oh's
Choosing when to quest, when to challenge, and when to do nothing made for deep gameplay decisions
Black border and black inside, these sleeves look professional and reinforce the edges to prevent peeling and other common problems
The reason why Lightning, Army of One is so good is due to Stagger