Normal Summon "Raidraptor - Vanishing Lanius," then use its effect to Special Summon "Raidraptor - Mimicry Lanius". Use them to Xyz Summon this card, then detach "Mimicry Lanius" to search out another copy of "Mimicry Lanius". Finally, banish the "Mimicry Lanius" in your Graveyard to search out another copy of "Vanishing Lanius". This will replace the cards used to Summoned this card and another copy of "Force Strix" allows to be Summoned next turn to increase your advantage.
This combo also works well by replacing "Mimicry Lanius" with "Raidraptor - Fuzzy Lanius", though that turn Xyz Monsters would unable to be Summoned other than "Raidraptor" ones if use any of the effects of "Fuzzy".