

Green flame blade is a great horde killing spell while still feeling cool. IMO everyone picks booming blade because it’s more useful against single targets, which is more fun against a larger range of enemies, from bosses to your equals, plus thunder is rarely resisted compared to fire.
Some people implement minion rules where overflowing damage from killing a weak enemy flows on to the adjacent enemy, which of course is simplified and incorporated into green flame blade. One of the hardest things to capture in the standard D&D rules is that in fantasy, the warrior (Aragorn, Holga, Achilles) typically cuts down hundreds of mooks while the mage battles the giant powerful monster who cannot be defeated by a sword (Gandalf Vs Balrog). In D&D, either it’s totally inversed or the mage is better at both, largely because spells like fireball suit both situations better.
Green flame blade is a very easy option to balance this scale, albeit via magic.
I had it from release and honestly, even day 1 it smoked the competition in the city sim genre, releasing with features and scale than Sim City ever had.
The DLC often introduced more systems, but they did feel ‘extra’, the game was perfectly functional before parks or tourism or natural disasters etc.
The reason CS:2 felt so necessary is because the first was bloated and had underlying issues in it’s simulation logic, like unrealistically inefficient driving, or a large expansion to residential areas causing all the new residents to die of old age at the same time, crippling the city. Every part of the GUI and logic just felt clunky compared to modern, polished games.