Use the effect of "Scrap Dragon" and destroy this card and a monster on your opponents side of the field. Then summon "Sorciere de Fleur" and use it's effect to summon the monster you destroyed.
Gain full advantage by summoning this card and then use "Dark Hole" to not only destroy all monsters on your opponents side of the field, but also summoning a monster with 2900 ATK.
Equip this card to "Mermaid Archer" and when mermaid archer's effect activates and it is "Destroyed" you can Special summon "Sorciere de Fleur" , Additionally if you can get a level 3 or lower monster with her effect you can equip it to mermaid archer again or preform Rank 3 Xyz summon to make the effect last longer
This card works well in combo with "Generation Shift" as it will not miss timing even though the effect is optional (because "Necro Fleur" says 'if this card is destroyed' and not 'when this card is destroyed') and it is an amazing way for deck thinning by moving both a "Sorciere" and a "Necro Fleur" from your deck to the field and your hand.
Summon this card and play "Chain Destruction". You will get 1 to 2 "Sorciere de Fleur" monsters on the field, depending on how many "Necro Fleur" cards you have left in your deck.
And if you want to be really devious, play any card effect to bounce "Necro Fleur" back to your hand or deck (such as "Compulsory Evacuation Device" or "Phoenix Wing Wind Blast") after activating "Chain Destruction" to the Normal, Flip or Special Summon of "Necro Fleur" to potentially get up to 3 "Sorciere de Fleurs" Special Summoned at once because all three will be in your hand and/or deck. Just be careful not to use anything that will negate the summon or "Chain Destruction" will resolve without effect.
Note that "Sorciere de Fleur" her effect is mandatory and will always trigger when summoned simultaneously through this combo. Up to 3 "Sorcieres" will trigger with this combo yet you only get to summon 1 monster from your opponents graveyard due to the 'the effect of "Sorciere de Fleur" can only be activated once per turn'. Therefor only the creature targeted by the last "Sorciere" in the chain will be summoned.