As a permanent with negamorph is turned face up, put a -1/-1 counter on it if its negamorph cost was paid to turn it face up
Alternatively, you could spring for one of the two starter decks for this set: either the Amber/Ruby deck with Jim Hawkins and Tigger, or the Emerald/Sapphire deck starring Go Go Tomago and Gadget Hackwrench
Then, when we attack, we either get a token thats just as big as our biggest creature and has trample or a number of 1/1 lifelink Vampires for the number of attacking creatures
Fathom Fleet Captain: A lot of setting up to get the token, yet you can may be able to do it consistently if you buff it or make sure your opponent has no more than one creature on the battlefield
If you've got some older physical Pokmon card packs that have Pokmon TCG Online codes instead of Pokmon TCG Live ones, don't worry - they'll still redeem fine on the new platform
That's all without crediting how good Atraxa is as a standalone (flyalone?) creature