Body Snatcher, Gypsy

[assassim]

Body Snatcher
Element: Dark
0/2
Cost: 4 dark (3 when upgraded)
Ability: Body Snatch, switches this creature with a target creature on your opponents side of the board.
Ability Cost: 5

This creature can swap itself with one of your opponents monsters, its ability can be used multiple times so your opponent would be able to use its ability against you (ability cost is high to it would be difficult for non-dark type elements to use it leaving them with a next to useless creature).

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Gypsy/Physic
Element: Entropy
1/2 (2/4 upgraded)
Cost: 4
Ability: Shrink, target creature loses (-2,0)
Ability cost: 2 Gravity

EDIT 1: Increased body snatcher Initial(2) and Ability cost(1)(should still be no problem for mono dark users)
             Decreased Gypsy initial and ability cost by 1

[Essence]

Gypsy, like Pradeshan Gypsy?  lol.   I like it, actually.  Especially the fact that it upgrades to a "physic".  That's just classic.

[bobcamel]

Body Snatcher is a particularly cheap way of removing enemy creatures, and with many enemy decks possibly not having Darkness it is irreversible, what could be too strong.

Gypsy, on the other side, is overcosted. Dual element, 3 cost ability, 5 cost frail creature, and all it does is chopping 2 attack off a creature.

[assassim]

ok i made changes to both cards,  any other comments or suggestions on these?

[bobcamel]

Still pretty meh on the Gypsy. 1 quanta per ability sounds more like it. So far, its cost is comparable to a Graboid, and see what it can do with similar quanta. Or, look at a Fire Spirit. It can gain 2 attack per 1 quantum of SAME element, then enemies can lose 2 attack per 1 quantum of DIFFERENT element.

[assassim]

If the cost is lowered to 1, then you would pretty much be able to use this ability every turn, quickly making some of the weaker creatures ineffective. Now say that you had 3 gypsies, you can take off 6 attack off a creature making most creatures useless.  The cost has to remain high to prevent rainbow decks from abusing this power (rainbows are already heavily gravity reliant due to pulvy and otys)