If someone played this against me, or Giant Fan for that matter, I wouldnt think anything of it
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If an effect allows you to pay an alternative cost rather than a spell's mana cost, you may pay that alternative cost when you jump-start a spell
There are a large variety of decks that can use it, and it will be a lynchpin in them all
Keep in mind, though, that they only sell Japanese Pokemon cards on their site and that, if you are looking to buy games that have yet to be physically released in the US, youll want to make sure that they have English support before buying them
In a similar vein, Kitsa cannot have summoning sickness since you need to tap it to use the copy ability