Using Locke in a Treasure Token deck, a graveyard matters deck, an Outlaws deck, or a deck that cares about casting your opponents spells all offer ways to maximize the value you get out of this creature
Some Gruul players have opted for a light blue splash to enable cards like Negate and Disdainful Stroke from the board
Token creature creation benefits the alliance mechanic in general, with a card like Gala Greeters getting max potential if you can create enough bodies each turn
The evolution of Magic boosters To understand the current lineup, a brief look back is in order
Its one of the few mechanics in MTG (alongside planeswalker emblems) that spells, cards, and effects cant interact with directly
Note it's worded to read for each one