When a wizard casts a spell, he utters a few words, perhaps a lone “abracadabra”, but more dramatically, a rhyming couplet or even an entire poem, as in “Double, double, toil and trouble; Fire burn, and cauldron bubble…” Here are a few rhymes for spells of the first level.
Charm Person
By this wink and by this smile, My new friend I do beguile.
Darkness
Ebon cloak of obscurity Descend on eyes that none may see.
Detect Magic
Cosmic forces arcane and divine Illuminate thyself with pale outline.
Floating Disc
Invisible porter, hand like a plate, Remain at my side and hold my weight.
Hold Portal
Portal, hatch, door, and gate, Let no intruder infiltrate.
Light
Eternal light that shines from high Illuminate as bright as sky.
Magic Missile
Missiles, missiles, one, two three, Strike my foes unerringly.
Magic Mouth
Listen and watch, mouthy illusion. Deliver my words upon instrusion.
Protection from Evil
Within this circle I am secure. Summoned evil must abjure.
Read Languages
Jargon, gibberish, and obscure babble, Decipher prose from scribble-scrabble.
Shield
Stop the arrow, stop the sword, Magic shield, be my ward.
Sleep
Count the sheep of endless number. Resign yourself to peaceful slumber.
Ventriloquism
I send my words without a trace To speak as from another place.
Update: see more Rhymes for Spells.