Small creature decks are historically easy match-ups for Burn, since Lightning Bolt and similar cards can act as either removal spells or win conditions
Being thematically intrinsic to the Lord of the Rings story and setting, odds are it will never show up outside of Middle-earth
Add just one other card that ensures creatures enter the battlefield with a +1/+1 counterwhether that be from Master Biomancer, Cathars Crusade, Juniper Order Ranger, Good Fortune Unicorn, or Path of Discoveryplus a sacrifice outlet, you can go infinite pretty easily
This meant that every Scapeshift, every Storm, or every other deck of that ilk could simply seem completely unbeatable
5 +1/+1 (+5/+5 on the other side) dragonscale-themed metal counters
The Ravnica cycle of signets are some of the best mana accelerators in the game