Since this card can be Special Summoned very easily, use the above cards to add this card to your hand, and use it as Tribute fodder for monsters that requires 2 Tributes.
This card does not require you to have (or lack) any monsters on your field, so you can Special Summon it like you would "Cyber Dragon" and then Summon another copy of this card (or another Level 4 monster) for a quick Xyz Summon.
Or Special Summon "Unknown Synchron", then Normal Summon this card. Use its effect to Special Summon another "Toy Knight" from your hand to Synchro Summon "Mist Wurm".
Or use all 3 "Toy Knight" and "Genex Ally Birdman" to easily Synchro Summon "Star Eater".
You can occupy your opponent's field with "Ojama Trio" or "Nightmare Archfiends", giving them 3 more monsters, and then you can Special Summon multiple copies of this card to the field.