Galerider Sliver [Magic 2014] San Diego Comic-Con 2017 put a +1/+1 counter on

put a +1/+1 counter on Khabál Ghoul for each creature that died this turn

Prevent all damage that would be dealt to you this turn by attacking creatures

players can't untap more than one land during their untap steps

Whereas Mishra works in metals and stone

Set: Guilds of Ravnica Type: Enchantment Mythic Cost: {4}{U}{R} Whenever you cast an instant or sorcery spell

Galerider Sliver [Magic 2014] San Diego Comic-Con 2017 put a +1/+1 counter onSet: Magic 2014 Type: Creature Sliver Rare Cost: {U} Sliver creatures you control have flying. Masters of adaptation, galeriders serve multiple purposes useful to the hive. When they're not patrolling their territories, their majestic wings serve to circulate cool air through the vast hive chambers.