Method getMaxForNonManaX

forge-game/src/main/java/forge/game/cost/Cost.java:1101–1115

(final SpellAbility ability, final Player payer, final boolean effect)

    }

    public Integer getMaxForNonManaX(final SpellAbility ability, final Player payer, final boolean effect) {
        Integer val = null;
        for (CostPart p : getCostParts()) {
            if (!p.getAmount().equals("X")) {
                continue;
            }

            val = ObjectUtils.min(val, p.getMaxAmountX(ability, payer, effect));
        }
        // extra 0 check
        if (val != null && val <= 0 && hasManaCost() && getCostMana().getXMin() > 0) {
            val = null;
        }
        return val;
    }
    public static final Cost Zero = new Cost(0);
}