Craft is not a triggered ability
If an activated ability of a creature you control costs no generic mana to activate (for example, if it costs , it costs, or it costs only nonmana actions such asor "Sacrifice a creature"), Training Grounds simply won't affect it

Other printings of Final Fortune $1,232.84 Final Fortune Seventh Edition $20.92 Final Fortune Secret Lair Drop $19.67 Final Fortune Classic Sixth Edition $17.70 Final Fortune Mirage $14.78 Final Fortune Seventh Edition $14.99 Final Fortune World Championship Decks 1998 Most valuable cards in Mystery Booster 2 View the full price guide $224.02 Urza, Lord High Artificer Mystery Booster 2 $168.84 Oracle of the Alpha Mystery Booster 2 $162.26 Demonic Consultation Mystery Booster 2 $129.36 Titania, Protector of Argoth Mystery Booster 2 $128.79 Command Tower Mystery Booster 2 $117.57 Lotus Petal Mystery Booster 2 $116.47 Gix, Yawgmoth Praetor Mystery Booster 2 $111.31 Mindbreak Trap Mystery Booster 2 More cards by Greg Hildebrandt & Tim Hildebrandt $101.42 Diabolic Intent Tales of Middle-earth Commander $91.03 Weathered Wayfarer Onslaught $76.30 Kenrith, the Returned King Tales of Middle-earth Commander $61.19 Sylvan Tutor Tales of Middle-earth Commander $61.00 Pact of Negation Tales of Middle-earth Commander $60.09 Bubbling Muck Urza's Destiny $47.28 Goblin Warchief Scourge $45.58 Bridge from Below Future Sight SetMystery Booster 2 Most valuableTop 100 Magic: The Gathering cards You might also like...

Trade Secrets is the hallmark example of how certain cards are fine in 1v1 Magic , but utterly broken in multiplayer
In addition to these full-art basic lands, you can find regular basic lands in Wilds of Eldraine Draft Boosters, Set Boosters, Bundles, and Commander decks
PSA grades each card individually, without regard to these stats or other population-level results