Frost Lock (Blue)

Ice Fusion

When this attacks, cards and abilities cost opponents an additional

to play or activate this turn.

When this attacks, if this was fused, it gets +1

and "When this hits a hero, until the end of their next turn, they can't pitch or play cards with base cost 0."

Defense Reactions are played and therefore would require an additional to play.
You cannot pitch or play cards with cost X or XX, as X is determined to be zero until it becomes a layer on the chain.
You can pitch cards with no cost (such as Heart of Fyendal) as it has no cost, not zero cost.
Even if the card has an additional cost i.e from frostbites, you cannot play the card if it has cost 0.
If a card has a cost of 1 and it reduced to 0 for any reason, you can still play the card as it’s base cost is not 0.
Defense Reactions are played. If you are under Frost Lock’s second effect you would not be able to play defense reactions with cost 0.
This affects all attacks this turn and does not require this attack to be on the combat chain.
The opposing heroes can respond to Frost Lock with playing cards and activated abilities. Cards and activated abilities only cost an additional once Frost Lock resolves and becomes attacking on the combat chain.

Fusion - Fusion is a new keyword that fuses one or more elements with an elemental card to give an additional effect.

You cannot reveal a card you are using to pitch to play the card. You pay resource costs before additional costs.
You may still play the card without paying the additional cost of Fusion.
You cannot reveal multiple cards to Fusion unless the card states you can (i.e a card with dual Fusion).
You cannot reveal a card that does not fit the criteria i.e you cannot reveal an Ice card to a Lightning Fusion card.
An Elemental card with Lightning Fusion is not a Lightning card/Element card. E.g you cannot fuse an Entwine Lightning with Entwine Lightning.
Defending with a card is not the same as playing and therefore you cannot fuse while defending with a card with fusion. Note, defense reactions are played in order to defend, paying their cost to do so. You can fuse a defense reaction card that has Fusion.

SubtypesArrow

Cost1

Attack3

Defense3

PitchBlue

SetsELE