With 1.8 and /particle it’s now easier to summon particles than before. I’d like to start using them for spells, as they’re more interesting than fireworks.
- Forging, Smithing:
flame †‡
- Unsliming:
slime ¶
- Peddling:
magicCrit
- Fusing, Allure:
crit †
- Decay:
witchMagic ¶
- Growth:
happyVillager ¶
- Time:
enchantmenttable ‡
- Wind:
explode
- Grazing: no particle for now
- Pruning: no particle for now
† – either around the player or around the affected chest
‡ – a few particles so it looks good
¶ – around the player in a circular shape (~10 particles, 2 blocks away)