Or, as some of us have done, give up completely
Isolde, Two Tales Of The Noble Knights does so much while only needing two Warrior Monsters on the field
(4/26/2014) The mana cost and mana value of strive spells don't change no matter how many targets they have
Adventurer Synchron, 2 Superheavy Samurai Adventurer Synchron) 8 Traptrix 6 Mannadium (2 Bystial Scareclaw Mannadium, 2 Scareclaw Mannadium, 2 Spright Scareclaw Mannadium) 6 Mathmech @Ignister 5 Blackwing (4 Blackwing, 1 Bystial Blackwing) 5 Eldlich (3 Grass Adventurer Ishizu Eldlich, 1 Eldlich, 1 Scareclaw Eldlich) 4 Bystial Thunder Dragon 4 Danger Dark World 4 Evil Eye 4 Generaider (3 Generaider, 1 Invoked Generaider) 4 Ishizu Vernusylph Naturia 4 Orcust (1 Orcust, 1 P.U.N.K
You can only use this effect of "Amazoness Princess" once per turn