Yisus and Yoshi, Megamar

Trample, Hexproof.
When Yisus and Yoshi, Megamar enters the battlefield, select two:
•Search your library for 12 basic lands, and put them into play tapped.
•Yisus and Yoshi gain double strike, and "Whenever this creature assigns combat damage, double that damage". There is an additional combat phase after this one.
•Yisus and Yoshi gain +X/+X, where X is equal to lands under your control.