Giant Insect

You transform a number of beasts (which do not have to be insects, despite the name of this spell) into giant or dire versions of themselves. Choose up to four beasts within range, the giant versions of which have a CR of 1/4 or less. These creatures transform into giant versions of their natural forms for the duration. For example, a centipede transforms into a giant centipede and a lizard transforms into a giant lizard.

This spell gives you no control over the beast, who may choose to defend you, attack you, or flee from you unless otherwise trained or compelled.

A creature remains in its giant size for 24 hours, until it drops to 0 hit points, or until you use an action to dismiss the effect on it. To maintain this spell on the creature for another 24 hours, you must cast this spell on the creature again before the current 24 hour period ends. This use of the spell reinforces the dire enchantments that enbiggen up to four creatures enhanced with this spell, rather than enhancing new ones. If you cast this spell on the same creatures every day for 30 days, the transformation becomes permanent and the material component is consumed.

You may choose to enhance greater beasts with this spell. To do so, simply "spend" the lesser beasts that would be enlarged to instead enlarge a beast whose giant version has a CR greater than 1/4. The number of equivalent beasts is listed on the table below. To maintain enhancement over a greater beast, one must maintain enhancement over it as if you were enhancing a number of minions equal to the cost of enhancing the greater minion.

The DM might allow you to choose different targets. For example, if you transform a mastiff, its giant version might have the same statistics as a dire wolf.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, you enlarge or maintain enhancement over two additional beasts for each slot level above 4th.