Is there a way to make a Large Animal companion Gargantuan?

[McDaygo]

Little background: So I’ve designed a Sea Pirate that is a Dino Druid/Pack Master 10, Sea Reaver 5

His ship is going to be a floating city kind of like the coconut pirates in Moana thay can split off. As only the main hub as sails, the idea is he has two tylasaurus attached to the smaller islands (his animal companions) that can detach and allow the raiding party to advance. The dinosaurs in the water are permanently attached unless the structures are destroyed amd this way they can propel the island against the wind.

I know because I’m the GM and I say poof gargantuan pets and no one would bat an eye; however I’d like have a way to do it with the rules (for my own knowledge when I’m not in the GM seat).

I know animal growth can make them huge but I think they need to be gargantuan just like the wild animal to pull off the visual.

[Skrayper]

If you took 5 levels of Egoist, you could use Metamorphosis to grow it two size categories.
Metamorphosis

If that's not an option, you could get a Skin of Proteus for 81,000 gold. That would give whomever wears it the metamorphosis power.

Both of those are for official, but alternate, rule systems.

Mythic Enlarge will do two size categories; you could incorporate a mythic version of Animal Growth, though if you are trying to stick to the rules it does not appear that a mythic version technically exists of Animal Growth.

Ultimate Campaign has rules on researching all new spells. You could research a more powerful version of Animal Growth:

Paizo wrote:

In the downtime system, the steps for spell research each day are as follows.

- Pay 100 gp × the spell's level for research costs and rare ingredients. You may spend Goods or Magic toward this cost.
- Determine the total days of progress required to complete the research, which is 7 × the spell level.
- Determine the spell research DC, which is 10 + twice the spell's level.
- Attempt a Spellcraft check and a Knowledge check (arcana for an arcane spell, religion for a divine spell) against the spell research DC. You can't take 10 on these checks. You may spend Magic to modify a check result, with 1 point of Magic adding 2 to your total (maximum +10). If both checks succeed, you make 1 day's progress toward completing the spell. When your days of progress equal the total number of days needed, the spell is completed and added to your spellbook or list of spells known.

If either or both spell research checks fail by 4 or less, you make no progress. For each check that fails by 5 or more, your research has led to poor results and you lose a day of progress toward completing the spell.

That cost is per day. Presuming this would be, say, an 8th level spell, it would cost 800 gp per day for 8 weeks - 44,800 gold to research.

Then you'd have to make it a permanent effect. You're modifying Permanency, OR you're making an item.

An 8th level spell with 1 minute duration, being crafted by a 15th level caster (druid, in this case), would cost 420,000. Making the spell permanent should probably be very expensive as well. Enlarge Person, a 1st level spell, costs 2500 to be permanent and would cost 4000 as a permanent magic item; if we base it solely on that we're looking at 300,000 to make your Animal Growth II permanent.

[Name Violation]

Levels in mammoth lord + animal growth spell?

[McDaygo]

Yeah I changed the last 3 levels of Sea reaver to Mammoth Lord

[Diego Rossi]

Using two Awakened tylasaurus wouldn't work?
They would work for the pirate for care, food, and maybe some magic trinket?

[Belafon]

Skrayper wrote:

If you took 5 levels of Egoist, you could use Metamorphosis to grow it two size categories.

Metamorphosis

If that's not an option, you could get a Skin of Proteus for 81,000 gold. That would give whomever wears it the metamorphosis power.

Both of those are for official, but alternate, rule systems.

Those are not “official” (Paizo-published) sources.

Quote:

Mythic Enlarge will do two size categories; you could incorporate a mythic version of Animal Growth, though if you are trying to stick to the rules it does not appear that a mythic version technically exists of Animal Growth.

Animal companions can be the target of spells that normally only target humanoids. However mythic enlarge person has a maximum growth size of Huge.

Mammoth Rider was the only way I could figure to get to gargantuan. We had a discussion about that class and multiple companions in a thread a while back and the consensus was that only one companion would be huge (though that was not an unassailable conclusion).

[Name Violation]

Belafon wrote:

Skrayper wrote:

If you took 5 levels of Egoist, you could use Metamorphosis to grow it two size categories.

Metamorphosis

If that's not an option, you could get a Skin of Proteus for 81,000 gold. That would give whomever wears it the metamorphosis power.

Both of those are for official, but alternate, rule systems.

Those are not “official” (Paizo-published) sources.

Quote:

Mythic Enlarge will do two size categories; you could incorporate a mythic version of Animal Growth, though if you are trying to stick to the rules it does not appear that a mythic version technically exists of Animal Growth.

Animal companions can be the target of spells that normally only target humanoids. However mythic enlarge person has a maximum growth size of Huge.

Mammoth Rider was the only way I could figure to get to gargantuan. We had a discussion about that class and multiple companions in a thread a while back and the consensus was that only one companion would be huge (though that was not an unassailable conclusion).

also mammoth lord has a more limited selection (+ DM discretion) of companion options