Effect can only be used if tribute summoned with a Steelswarm monster as tribute
Heavy LP cost .
Here are the monsters you should use as tribute fodder. When Tributed Steelswarm Caller can special summon a Level 4 or lower Steelswarm monster from your deck. You can special summon another Steelswarm Caller from your deck as he can make for a decent beater, or if you have Steelswarm Gatekeeper you can special summon Genome for another Tribute summon.
You can use Advance Force to tribute summon Steelswarm Longhorn by tributing only 1 Steelswarm Mantis. Since this is a tribute summon, you still gain additional summons from Steelswarm Gatekeeper. Use Advance Zone and Trial and Tribulation to gain various effects based on the number of monsters you tributed for that turn.
You can use Monstermorph: Evolution to send Longhorn to the graveyard and summon Steelswarm Hercules from your deck, giving you a much more powerful monster that is able to wipe everything off of the field.
Steelswarm Caucastag might be a better monster, because he can destroy multiple cards, can destroy backrow, and doesn’t have an LP cost. They are both 2 tribute monsters that would most likely be summoned with Steelswarm monsters as tribute. The only thing advantageous about using Longhorn is having 200 more attack, and Longhorn only needs 1 of his tributes to be a Steelswarm monster.
Destroys Monster Cards
Pays Life Points for cost
I face this card,and it says pay 1000 and TARGET one monster ur opponent controls,then why my cidatel whale doesn't work?as once per turn i can negate And destroy that target cidatel whale by card effects.