The four horsemen have updated to more modern steeds. They're probably gonna be pretty mad when they find out you have swiped one.
Apocalypse Steed price in Growtopia: sells for about 22 WL, buyers pay about 10 WL (median of 28 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: ZOHN, 9MAM, ZKXLK, S330