Druid is MagicMonkeycard in Bloons Card Storm. It is a defender that gains +10 ATK during the opponent's turn. Additionally, it restores up to 50 health for the player's Hero when it is played. It cannot raise the Hero's health above the max lives (usually 500).
Druid's On Play effect guarantees healing on the turn it is played, and its Common rarity makes acquisition of this card easier in contrast with Jungle's Bounty Druid. Its main disadvantage is that it's less effective than Quick Break while having relatively weak stats for a 2-delay Monkey (e.g. Sniper Monkey has 90 ATK).
Compared to the Tack Shooter, Druid costs 2 more and does less damage on Defender (Tack does up to 70 damage on Defender, compared to 60), but comes with the advantage of the aforementioned On Play effect.
Its Common rarity makes it decent as an unlock for newer players when earned from random loot, however it should be replaced with more efficient options as the player unlocks better Monkeys and Powers.