O Grande Mestre em Armas feat (PHB, p. 167) diz:
- Before you make a melee attack with a heavy weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.
O Arma Espiritual a descrição do feitiço diz:
You create a floating, spectral weapon within range that lasts for the duration or until you cast this spell again. When you cast the spell, you can make a melee spell attack against a creature within 5 feet of the weapon. [...] The weapon can take whatever form you choose.
A forma escolhida determina as estatísticas da arma (e, portanto, concede o Pesado atributo que permite que o benefício GWM listado seja usado) ou é apenas uma decisão cosmética?