Helm of the Ghastlord

Enchant creature
As long as enchanted creature is blue, it gets +1/+1 and has "Whenever this creature deals damage to an opponent, draw a card."
As long as enchanted creature is black, it gets +1/+1 and has "Whenever this creature deals damage to an opponent, that player discards a card."

生物结界
只要受此结界的生物是蓝色，它便得+1/+1且具有「每当此生物向对手造成伤害时，抓一张牌。」
只要受此结界的生物是黑色，它便得+1/+1且具有「每当此生物向对手造成伤害时，该牌手弃一张牌。」