Competes with Lucario for collector attention
Descendants' Path Descendants' Path can give you a free creature every turn, and youll see this green enchantment played in decks that want to cast expensive creatures like dinosaurs, dragons, and big slivers
While cards with abilities similar to this had existed, the fact that this card was designed to boost your creatures and weaken your foes, as long as they were playing nonblack, was rather novel for the time
A few Creatures in Shadowmoor have relevant activated abilities that require tapping to activate
The Goat version gives you one lore per trigger, so you'll want to bounce Merlin in and out of play as much as possible
It's especially fearsome in blue, which has lots of card draw effects and can make the most of the extra mana when its given