Keeper of Fables's ability triggers even if it's dealt lethal damage at the same time that non-Humans you control deal combat damage to a player.
04-10-2019
wotc
If non-Human creatures you control deal combat damage to two or more players at the same time, Keeper of Fables's ability triggers for each of those players.
04-10-2019
wotc
Because creatures with first strike deal combat damage before creatures without first strike, Keeper of Fables's ability can trigger twice during one combat if your creatures deal combat damage to one player at different times.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.