Forum:3 tribute monsters

i was wondering, can i summon a monster like a wicked god, or raviel or another monster that need 3 tributes to be summoned with one mosnter and one double tribute mosnter like kaiser sea horse , or doble coston or any like that ? (if applicable, i mean , supose that i changed the type of doble coston to fiend with DNA surgery, and i have another fiend , can i sumon a raviel?