When this card you control is destroyed by battle with an opponent's attacking monster and sent to your Graveyard: You can Special Summon 1 Warrior-Type monster with 1500 or less ATK from your Deck in Attack Position.
Effect only activates when destroyed by an opponent’s attack.
Monster is always Special Summoned in attack position.
A warrior archetype with many monsters with around 1500 attack which makes them work with Red Sparrow Summoner. Amazoness Princess is a great monster to summon because she can search out your Amazoness Onslaught.
If you have a way to change your monster’s battle position or if your opponent has no monsters left to attack, you can Special Summon Millenium Shield as a wall. You can also use a card like Inverse Universe to swap the attack and defense of Millenium Shield
HERO decks are filled with low-stat Warrior monsters for Red Sparrow Summoner to summon, all with various effects for different situation. Effects that trigger upon summoning like Elemental HERO Blazeman or Vision HERO Vylon are quite effective.
We already had Howling Insect, Vortex the Whirlwind, UFOroid, Bird of Roses, Genex Searcher, Nisamu, Moonlight Papillon, Brotherhood of the Fire Fist - Boar, Winda, Gulldo, Cherry Inmato, Shien's Footsoldier, Test Ape, Phantom Magician, Stygian Security and several cards like Troop Dragon that Summon other copies of themselves, but sure, yeah, this is totally the first.