Higure, the Still Wind [Planechase 2012] Explorer if All Hallow's Eve is

if All Hallow's Eve is exiled with a scream counter on it

Counters aren't removed from your permanents due to game rules

create an X/X colorless Construct artifact creature token

struck sharp on death

Dracolich enters the battlefield tapped

Higure, the Still Wind [Planechase 2012] Explorer if All Hallow's Eve isSet: Planechase 2012 Type: Legendary Creature Human Ninja Rarity: Rare Cost: {3}{U}{U} Ninjutsu {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle. {2}: Target Ninja creature can't be blocked this turn.