Note that since this card changes to Defense Position after Special Summoning a monster, monsters with optional effects that trigger when they are summoned will miss the timing.
Keep in mind that mandatory effects cannot miss timing.
This card is very useful for Synchro Summon as well as Xyz Summon. Summon a Tuner with this card's effect for a quick Synchro Summon, or Summon a Level 4 monster and overlay them for a Rank 4 Xyz Monster.
This card is useful in a Scrap Deck. It can Special Summon a "Scrap Beast" from your hand, allowing you to Synchro Summon "Scrap Dragon" while also setting up for "Scrap Chimera" to summon that same "Scrap Beast" from your Graveyard.
This card's EARTHAttribute further supports its synergy with the Deck.
Special Summon "Sacred Crane" to draw 1 card and then Xyz Summon for a Rank 4 Xyz Monster.
You can Special Summon "Lyla, Lightsworn Sorceress" to activate its effect to destroy 1 Spell/Trap card, and after that Xyz Summon.
Special Summon a monster that shifts to Defense Position after attacking, like "Goblin Attack Force". After the Summon, activate "Final Attack Orders", so both monsters do not switch to Defense Position. You are now able to attack with two monsters, then Xyz Summon for a Rank 4 Xyz Monster.
Since both are Warrior-Type monsters, search with "Field-Commander Rahz". "Rahz" also gets his effect when he is Special Summoned with "Goblindbergh".