Mark of the Pulse L'Cie

Enchant Human, then choose an ability it has --
- Enchanted Human has "{4}, {t}, Exert this creature: Destroy two target nonland permanents."
- Enchanted Human has "{5}, {t}, Exert this creature: Tap four target nonland permanents. They lose all abilities until end of turn, and don't untap during their controller's next untap step."
- Enchanted Human has "{6}, {t}, Exert this creature: It gets +4/+4 and gains trample until end of turn, then fi