I find this splinter useful in 30 mana battles. Compared to Divine healer, Venari Crystalsmith can do ranged attacks (Divine Healer can do magic, but it needs to be leveled up first). It also has higher speed, meaning that it will be able to heal your tank earlier than Divine Healer. Speed is very important stat in battles, as it decides the turn of attacks of the splinters. Divine Healer and Venari Crystalsmith will be targeted by splinters with snipe ability, so be sure to have a beefy no-attack splinter like Peaceful Giant placed on your second position. Overall, what I can say about Venari Crystalsmith is that it is good alternative for Divine Healer, but a better one