Talniri Terraforming

Rebound
Search your library for two land cards and put
them into play tapped. Return two lands you
control to their owner's hand. Lands you control
are Islands, Mountains, and Forests in addition
to their other types until end of turn. You may
untap two lands you control. Shuffle your library.
The lands under Talniri influence warp and bend in strange yet elegant ways.