Forum:Dark Strike Fighter + Black ptera + Ulitmate Offering

I Didn't see this on the tips page for dark strike fighter so here we go.

Have dark strike fighter on the field and summon black ptera and use dark strike fighters effect to deal 600 damage. now since black ptera was sent to the graveyard by battle he goes back to my hand. so now i activate Ulitmate Offering and summon black ptera and use dark strike fighters effect again. this is not an infinete loop because i cant do it infinetly and it has an ending.

so would this be an OTK and is this actually legit?