Using a Level 4 material Monster, you can Synchro Summon both Level 7 and Level 8 Synchro Monsters with this card, depending on whether or not you activated its Effect.
In fact, this card has at least twice the versatility of any tuner monster because it can act as a level 3 or equivalent to a level 4 Tuner.
Use "Vice Dragon's" with this card for an easy level 8 Synchro Summon in a pure Dragon deck (like "Stardust Dragon"), or a level 9 if you use "Delta Flyer's" effect.
This card may be useful in a "Dark Armed Dragon" deck. If you clear the field to a reasonable extent with "Dark Armed Dragon", you can Synchro Summon for "Trident Dragion" for a single monster which can deplete your opponent's lifepoints.
If you have "Advance Force" on the field, you can use this card's effect to increase the level of "Hardened Armed Dragon" and Tribute Summon a level 7 or higher monster that will not be destroyed by effects.
If you have "Swords of Revealing Light" or another stall card, like "Level Limit - Area B", you can raise a low level Dragon-Type monster to level 7 and then summon "Trident Dragion" without having to waste a high level Dragon-Type monster and then use that stall card for "Trident Dragion's" effect.
This card can be used effectively with "Red-Eyes Darkness Metal Dragon" and "Divine Dragon Apocralyph". Use the effect of "Darkness Metal Dragon" to Special Summon "Apocralyph". If this card is in your Graveyard, use the effect of "Apocralyph" to add it to your hand, then Summon it. Then you can either summon a Level 7 Synchro Monster, or use this card's effect on "Apocralyph" and Synchro Summon a Level 8 Synchro Monster. As long as you keep "Darkness Metal Dragon" on the field and you have two empty Monster Zones, you can repeat this combo every turn.