The Fire King Sanctuary

Amphibious Swarmship Amblowhale Link 4 FIRE Machine 2+ Effect Monsters Gains 200 ATK for each Link Monster in the GYs. You can only use each of the following effects of "Amphibious Swarmship Amblowhale" once per turn. ● If this card is destroyed: You can target 1 Link-3 or lower monster in either GY; Special Summon it. ● If a Link-3 or lower monster(s) on the field is destroyed by battle or card effect while this card is in your GY: You can banish this card from your GY; destroy 1 card on the field. ATK 2600

It's one of our main endboard pieces, and it has one single job - to blow up spectacularly.

What does that mean, you ask? We use it as a target for Fire King High Avatar Kirin's in-hand effect, destroying it. This will trigger its effect to revive a I:P Masquerena or Duelittle Chimera from your GY, and also trigger a Sacred Fire King Garunix in your GY, filling up the field very quickly.

Then, when any Link-3 or lower is destroyed, you can banish it from the GY so you can destroy 1 card on the field. Neat, isn't it?

Finally, a cute trick you can do is Xyz Summon Dingirsu, the Orcust of the Evening Star later on in the duel, to attach Amblowhale to it as material, then detach it whenever needed - basically resetting it in the GY to be banished again.

Be careful with Amblowhale's effect when Promethean Princess, Bestower of Flames is on the field. She locks you into FIRE monsters, so you will not be able to Special Summon an I:P Masquerena from the GY with Amblowhale. Sequence your interruptions properly to avoid this.

We heavily recommend running 1 copy if you own it.