The Upgrades room improves each spell with 5 upgrades bought with stars: 13 stars for Rain of Fire, 15 for Call Reinforcements.
Rain of Fire by upgrade level
Meteors deal true damage, which armor does not reduce. One damage roll per meteor hits every enemy in its blast; the meteors fall one every 0.33 s around the chosen spot.
| Upgrade | Meteors | Damage |
|---|---|---|
| None | 3 | 30-60 |
| Blazing Skies | 5 | 50-80 |
| Scorched Earth | 5 | 50-80 |
| The Fast & Furious | 5 | 90-120 |
| Blazing Earth | 5 | 90-120 |
| Cataclysm | 5 + 5 random | 150-180 |
Cooldown: 80 s, 70 s from The Fast & Furious and 60 s from Blazing Earth.
Call Reinforcements by upgrade level
Each call brings 2 soldiers for 20 s. They heal while not fighting, starting 2 s after the last hit they took.
| Upgrade | Health | Damage |
|---|---|---|
| None (Farmers) | 30 | 1-2 |
| Well Fed | 50 | 1-3 |
| Conscripts | 70 | 2-4 |
| Warriors | 90 | 3-6 |
| Legionnaires | 110 | 6-10 |
| Spear Throw | 110 | 6-10, spear 25-40 |
Armor: 0% without upgrades, 10% from Conscripts, 20% from Warriors and 30% from Legionnaires.
Health is the Normal value; on Casual reinforcements have more (see the Call Reinforcements page).