FOILCheapest priced copy (Dominaria): $1.29 at Card Kingdom, near mint, their price list as of .
Grand Warlord Radha 
Legendary Creature — Elf Warrior · 3/4 · Rare · Dominaria Promos · #195s
Haste
Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $1.29 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria | 195 | Rare | $1.29 | $1.99 |
| Dominaria Promos | 195s | Rare | — | $2.99 |
2 rulings from Wizards of the Coast
- 27 April 2018After Radha’s triggered ability resolves, you can cast spells and activate abilities before blockers are declared.
- 27 April 2018The amount of mana you’ll add is the number of creatures you attack with. Creatures that are put onto the battlefield attacking before Radha’s triggered ability resolves don’t count, and creatures that attacked but left combat before the triggered ability resolves do count.