Sigarda does not directly contribute to any of those themes, but I chose her as the general, because she is very difficult to remove, once she is on the battlefield, and I feel that this type of creative and unusual deckbuilding is good and should be encouraged
They can be used to clear the board of pesky creatures, reset a stalled game, or just plain ol screw your opponent over
If all your creatures are Dragons, five creatures entering the battlefield simultaneously will trigger Dragon Tempest five times for a total of 25 damage
Once an opponent has two or more Islands in play, it becomes ridiculously overpowered
So if I were to use this card with Slugma from this set, I would only give the two of them a 2 out of 5 rating, I would not recommend them
(People make things harder than they seem sometimes.) They need to deal with their gambling problem and ritual flipping out respectively, clean up their acts and petition for re-entry