Best Grenades? Nah. That's totally Titans. Get to take away their death? At the expense of a potentially more useful super ability/node, yes. Though I agree Warlocks have the melee range of Jesus and Flame Shield procing on a hit instead of a kill is kinda whack but like... I don't really care enough to make a big deal out of it. Every class has pros and cons, don't pretend Warlocks have none of the latter. Their jump, for instance.