雪境法术
将X个+1/+1指示物分配给任意数量由你操控的生物,X为施放此咒语时支付过的

数量。然后你每操控一个力量等于或大于4的生物,便抓一张牌。(

为产自雪境来源的法术力。)
Snow is a supertype, not a card type. It has no rules meaning or function by itself, but spells and abilities may refer to it.
Because none of the creatures are targeted, you can choose to put +1/+1 counters on a creature with protection from green, for example.
You determine how many creatures you control with power 4 or greater as Blessing of Frost is resolving, after +1/+1 counters have been put on creatures.
Because Blessing of Frost doesn’t target any creatures, you determine how the +1/+1 counters will be distributed as Blessing of Frost resolves. Players may respond to Blessing of Frost as normal, and they’ll know how much snow mana you spent to cast it, but they won’t necessarily know how the counters will be distributed.
Some cards have additional effects for each
spent to cast them. You can cast these spells even if you don’t spend any snow mana to cast them; their additional effects simply won’t do anything.
The
symbol is a generic mana symbol. It represents a cost that can be paid by one mana that was produced by a snow source. That mana can be any color or colorless.
Snow isn’t a type of mana. If an effect says you may spend mana as though it were any type, you can’t pay for
using mana that wasn’t produced by a snow source.
If you cast Blessing of Frost without spending snow mana, no +1/+1 counters will be distributed. You may still draw cards if your creatures are large enough.
If Blessing of Frost is copied, no mana was spent to cast the copy, so no +1/+1 counters will be distributed. You may still draw cards if your creatures are large enough.