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: Add 
to your mana pool.
to your mana pool.
| Oracle text |
| Stensia Grotto {} |Land| Tap: Add R to your mana pool. / Put Stensia Grotto on top of your library: Add 1 to your mana pool. / R, Tap, Sacrifice an Elemental: Stensia Grotto deals 1 damage to target creature if it is a Skeleton. Any player may activate this ability. |