Chainspinner and Venari Heatsmith both have void shield, which means that magic hits the shield before hitting their health. Usually, magic goes under the shield. Void shield is really useful when facing a lot of magic attacks. Charlock Minotaur has true strike, which means that his attacks cannot miss. Have you ever fought a battle against a flying monster, or a really fast monster, and you kept missing? True strike prevents that and makes him hit every single time. Its a really useful ability that is often overlooked. I hope that was helpful!
ah thank you very much for this information, I understand better the use of the real strike !!! but it's astonishing that the splinterlands team does not correct these little bugs!