I've been trashing water magic teams with life and sneak cards. Lorna Shine upfront gives my team one free round of damage and the rest can put down the magic team. Even if they play wavesmith I still have enough damage and healing to beat their team if it's a 20+ mana fight. The new venari healer card helps a ton. Adding silverhand assassin makes the fight even easier.
https://ecency.com/splinterlands/@mantis-tobaggon/my-new-favorite-life-splinter
Lorna with sneak sounds like a beautiful strategy. They're pretty cheap to rent now, will definitely give it a try!