At every end step, if an opponent loses three or more life, you get a card
This version of Wolverine had the Regenerate keyword, which could be used to protect him from damage, referencing his Healing Factor from the comics, which allows him to heal incredibly quickly from otherwise fatal wounds
In Limited very few decks could defeat a Masticore even if it had no backup at all, and despite a huge portion of the cost of this card being something you need to pay continuously often players who used Tinker would go get a Masticore
On top of that, the current lowest listing for non-foil, extended art copies is $14
Golgari Self-Mill Battle for Baldurs Gate signpost Kagha, Shadow Archdruid returns to once again helm the Golgari self-mill archetype
This enchantment can single-handedly prevent all of your opponents from playing the game at all, though it's rather unlikely that this happens