This Gruul Commander has a built-in ramp ability, creating an Icy Manalith token that can tap to add any color of mana
Number 446 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Not Legal Formats Alchemy, Pauper Rulings (3/16/2018) While Rest in Peace is on the battlefield, abilities that trigger whenever a creature dies won't trigger because cards and tokens are never put into a player's graveyard
eBay is the best option for high-value singles because of its massive buyer pool and sold-listings research tool
To dive into this mechanic in more depth, it's (like most mechanics) a version of Kicker
Even in an Un -set friendly game this has literal zero merit outside of maybe winning the game, and seems like more of a hassle to track than anything