pokemon shadow mewtwo card What is this custom Pokémon card? [1P] Psychic (10+) Does 10 damage plus 10 more damage for each Energy card attached to defender Glow-in-the-Dark Mewtwo V Shadowbox: Pokemon

That niche is cEDH, and its a card sorely in need of a reprint

The rough gist of how it works is that the program will generate two sample opening hands, and then gives you the hand with a healthier mix of lands and spells with greater than 50% likelihood

You may put that card on the bottom.) Land Land (CTRL to add secondary) Landfall Mossborn Hydra Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) This creature enters with a +1/+1 counter on it

Exile Mnemonic Deluge

So, through trying to source cards for my own collection from old box sets and starter packs, I ended up with a lot of "spare" cards

For three mana you get to search your library for a basic land and put it into play