Dragon Flame Reservoir

Dragon Flame Reservoir enters play with x flame counters.
Equipped creature gets +x/0 where x is the
number of flame counters on DFR.
Equipped creature has: Remove a flame counter
from DFR: Deal 1 damage to all creatures and planeswalkers. If equipped creature is a dragon, instead add a flame counter as this ability's cost. Activate once each turn.
Equip 1{r}