sun & moon base set booster box Pokemon TCG: This comprehensive bundle introduces you to the Sun pokemon tcg sun and moon

The activation conditions include paying 1 cost and placing this card as 1 of your [Legend-Arms] trait or 1 of your level 3 Digimon's bottom digivolution card, therefore the effect can't be activated just by paying 1 cost

Special Summon it to your zone this card points to, but each turn, it cannot attack unless this card has already declared an attack that turn

In particular, you dont get to play a land as Explore resolves

If you are able to cast Deep Water, youve already gotten two blue sources available

[1] If this card is Normal Summoned: You can banish 1 "Archfiend" card from your GY

There are two things to consider in answering that question