With the Deck Band for Tidying up, you can organize your deck one by one, and if you store it with other items in the Tidying Up Box, you dont have to worry about it getting scattered
Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.) Once Deepfathom Echo becomes a copy of another creature, it no longer has its triggered ability until end of turn
Kuon's Essence Legendary Enchantment At the beginning of each players upkeep, that player sacrifices a creature of their choice
Its also great in Commander, where it can be particularly spicy with Landfall Commanders, as there are few cards that can give you so many landfall triggers in a single turn
Higher quality and graded cards have the potential to go for more, too
The biggest decision to make now is whether to use the CCG Toolkit (a UE4 framework for making card games ) or to remake the mechanics from scratch, more on this explained in the video