Small Boulder
Small Boulder is a common Isaac card.
Description
Costs 0 energy. When played:
- 1. Launch an Asteroid.
Upgrades
Small Boulder A
Costs 0 energy. When played:
- 1. Launch an Asteroid with a Bubble Shield.
Small Boulder B
Costs 0 energy. When played:
- 1. Launch an Asteroid offset 1 left from your missile bay.
- 2. Launch an Asteroid offset 1 right from your missile bay.
Exhausts when played.
Strategy
Small Boulder is a cheap way to block enemy shots, blocking them with a boulder. It also plays well into artifacts that encourage you to spam midrow objects like Gravel Recycler and Salvage Arm. It can be hard to use this with drones unless you have plenty of either ship movement or Droneshift to keep your Missile Bay clear.
Its A upgrade adds a Bubble Shield to the asteroids, which leans you into a defensive mindset - you don't generally have a vested interest in keeping an asteroid alive, but it does take 2 hits for you. It doesn't play well with Gravel Recycler and Salvage Arm as those generally want the asteroid to get destroyed.
Its B upgrade on the other hand doubles its output and, importantly, doesn't use the slot in front of your missile bay, so it can be used alongside other cards that launch midrow objects in that slot such as Attack Drone without moving. It does make it Exhaust, limiting its abusability with Gravel Recycler and Salvage Arm, but its initial utility is often worth it.
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