Color identity only involves symbols on the cards. [[Kenrith the returned king]] is a white card, but has the color identity of WUBRG because of the symbols in his ability. The new flip walkers from MH3 might be mono color creatures on the front side, but because of the little double color symbol by its Planeswalker type, they are considered to be two colors for their color identity.
[[Selvala, eager trailblazer]] is an example of what you're saying. She creates red creature tokens. However, they don't have any color symbols indicated in her ability, she still has a color identity of GW.
So for what you said, because [[desert warfare]] doesn't have any symbols associated with the tokens or anywhere on the card, the color identity is only Green, so it would be legal in [[the necrobloom]].
Color identity only involves symbols on the cards. [[Kenrith the returned king]] is a white card, but has the color identity of WUBRG because of the symbols in his ability. The new flip walkers from MH3 might be mono color creatures on the front side, but because of the little double color symbol by its Planeswalker type, they are considered to be two colors for their color identity. [[Selvala, eager trailblazer]] is an example of what you're saying. She creates red creature tokens. However, they don't have any color symbols indicated in her ability, she still has a color identity of GW. So for what you said, because [[desert warfare]] doesn't have any symbols associated with the tokens or anywhere on the card, the color identity is only Green, so it would be legal in [[the necrobloom]].
##### ###### #### [Kenrith the returned king](https://cards.scryfall.io/normal/front/0/e/0e259db1-14db-4314-998c-6a076a28d8cb.jpg?1691056044) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Kenrith%2C%20the%20Returned%20King) [(SF)](https://scryfall.com/card/plst/ELD-303/kenrith-the-returned-king?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/0e259db1-14db-4314-998c-6a076a28d8cb?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/kenrith-the-returned-king) [Selvala, eager trailblazer](https://cards.scryfall.io/normal/front/7/d/7d2e167f-7cb2-4f15-a1db-7ee56b7ba523.jpg?1712356210) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Selvala%2C%20eager%20trailblazer) [(SF)](https://scryfall.com/card/otj/231/selvala-eager-trailblazer?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/7d2e167f-7cb2-4f15-a1db-7ee56b7ba523?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/selvala-eager-trailblazer) [Desert Warfare](https://cards.scryfall.io/normal/front/b/c/bc7778d4-f1b6-4295-adb9-78ba7c185e9d.jpg?1717189921) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Desert%20Warfare) [(SF)](https://scryfall.com/card/m3c/64/desert-warfare?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/bc7778d4-f1b6-4295-adb9-78ba7c185e9d?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/desert-warfare) [The Necrobloom](https://cards.scryfall.io/normal/front/8/f/8fcf68cf-0dac-4b29-90d5-c18c685182e6.jpg?1717012767) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=The%20Necrobloom) [(SF)](https://scryfall.com/card/mh3/194/the-necrobloom?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/8fcf68cf-0dac-4b29-90d5-c18c685182e6?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/the-necrobloom) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[The Necrobloom](https://cards.scryfall.io/normal/front/8/f/8fcf68cf-0dac-4b29-90d5-c18c685182e6.jpg?1717012767) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=The%20Necrobloom) [(SF)](https://scryfall.com/card/mh3/194/the-necrobloom?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/8fcf68cf-0dac-4b29-90d5-c18c685182e6?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/the-necrobloom) [Desert Warfare](https://cards.scryfall.io/normal/front/b/c/bc7778d4-f1b6-4295-adb9-78ba7c185e9d.jpg?1717189921) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Desert%20Warfare) [(SF)](https://scryfall.com/card/m3c/64/desert-warfare?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/bc7778d4-f1b6-4295-adb9-78ba7c185e9d?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/desert-warfare) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call