Cards from Play Boosters, Collector Boosters, Bundles, and Theme Decks will be legal for play in the Standard, Pioneer, Modern, and Commander formats
Most sets will have a few three-colored cards, but generally they're regulated to specific sets built around multicolored cards and mechanics
The second most valuable card is Giratina VSTAR UR #261 at approximately $156 (16,000)
By providing a chance to either ramp or draw a card an additional time each turn cycle, players can get to their big plays quicker, or just ensure they arent getting stuck without resources
Most players won't actually get much value out of Tangela
What did you think of my first Top Ten list and the three honorable mentions that cane with it