Clash Royale (Free) is adding an interesting new spell today called Heal, and—as I hope you can guess—it heals your troops. This 3-Elixir spell heals your units every 0.5 seconds over 3 seconds for 176/sec at Level 7, and it can really change the momentum of a match if played at the right time on the right troops. The spell is unlocked at Arena 10, Hog Mountain. The Heal spell featured in its own Draft Challenge during the weekend, so some of you are already familiar with how it plays. For the rest of you, today’s the day to go get your hands on it. Why would you want to play the Heal Spell in your deck?
Well, there are many ways in which Heal can be a factor in a match. For instance, it can be almost a direct trade for Poison, although Poison lasts longer than Heal. Heal, of course, won’t heal any destroyed troops, so don’t try using it on weak troops that might be one-shot by the time you play the spell. What are your thoughts on the Heal spell, and would you want to see more support spells like this one?

I feel like you reviewed this game a little early, the developer is super active and he actually listens to his fans, a 2 and a half rating is ridiculous since the game isn't complete yet.
The review mentions that, but let's be real here, this is a competitive place to exist. The App Store is filled to the brim, so releasing something with almost no content is not going to be met with positivity.
If the game wasn't complete, which it is clearly in the early stages, why release it at a premium price?
Sorry but if I'm paying $2 for s game on the App Store, it needs to have content or be compelling enough to justify the price. While it might be low, it's not low enough for the content that currently exists. It's live on the App Store, therefore it is fair to review it.
But even with more content, the point Jason makes still stands, it is a relatively average attempt to enter into the genre. Maybe the review score is a little low, but again, reviews are subjective.