Doors of Durin
Legendary Artifact
Whenever you attack, scry 2, then you may reveal the top card of your library. If a creature card is revealed this way, put it onto the battlefield tapped and attacking. Until your next turn, it gains trample if you control a Dwarf and hexproof if you control an Elf.
"Speak, friend, and enter."
Illustrated by
The Lord of the Rings: Tales of Middle-earth#779RareEnglish