Whenever you attack, scry 2 (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.), then you may reveal the top card of your library. If it's a creature card, put it onto the battlefield tapped and attacking. Until your next turn, it gains trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) if you control a Dwarf and hexproof (This permanent can't be the target of spells or abilities your opponents control.) if you control an Elf.