Mishra, Claimed by Gix [The Brothers' War] Elder Giant you may pay {2} and

you may pay {2} and exile it from your hand face down

it also gains the following ability until end of turn

Urza's Battlethopter's power

target opponent looks at the top three cards of your library and separates them into a face-down pile and a face-up pile

twice that many of those tokens are created instead

Mishra, Claimed by Gix [The Brothers' War] Elder Giant you may pay {2} andSet: The Brothers' War Type: Legendary Creature Phyrexian Human Rarity: Mythic Cost: {2}{B}{R} Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters the battlefield tapped 9 9 and attacking.