Shadow is one of the main mechanics from the Tempest block which is comprised of Tempest , Stronghold , and Exodus
Legendary Land Color tag templates(None) Castle Locthwain This land enters tapped unless you control a Swamp
An artifact that costs no mana, you can tap it and sacrifice it to look at the top of target player's library, then draw a card at the start of the next upkeep
Being a guy himself also has some tempo merits allowing you to block a bit better while your aerial force gets to work
Well, with Altar of Dementia out, you can take out another player by eliminating their library altogether, giving them a very narrow window to do anything by the time their next draw step comes around
If the Sculler hits a removal spell, its easy to kill the Sculler instead of a Dragon, since they know theyre going to get another removal spell for the Dragon thats threatening to kill them