pokemon cards etb TCG: Pokemon GO Elite Trainer Box : Toys & Games Mega Evolution expansion Twilight Masquerade Pokemon Center Elite

For example, a creature that's put into a graveyard and then ceases to exist still triggers "Whenever a creature dies" abilities

Swampwalk Creature (28) 1x Anurid Murkdiver 1x Blistergrub 1x Bog Raiders 1x Bog Serpent 1x Bog Smugglers 1x Bog Tatters 1x Bog Wraith 1x Cateran Slaver 1x Corpse Harvester 1x Cyclopean Giant 1x Dirtwater Wraith 1x Dross Golem 1x Fendeep Summoner 1x Filth 1x Guul Draz Overseer 1x Infernal Denizen 1x Liliana's Shade 1x Lost Soul 1x Magus of the Coffers 1x Moor Fiend 1x Nightmare 1x Paragon of Open Graves 1x Plague Beetle 1x Quag Vampires 1x Restless Bones 1x Squelching Leeches 1x Urborg Shambler 1x Whispering Shade Planeswalker (1) Land (46) Enchantment (8) 1x Bad Moon 1x Blanket of Night 1x Contaminated Ground 1x Evil Presence 1x Genju of the Fens 1x Leshrac's Rite 1x Quag Sickness 1x Tainted Well Artifact (3) Instant (4) Sorcery (9) 1x Bubbling Muck 1x Choking Sands 1x Corrupt 1x Dregs of Sorrow 1x Infernal Harvest 1x Mind Sludge 1x Mire's Toll 1x Nighthaze 1x Nightmare Incursion

By imprinting a coloured card you massively reduce your need for that colour in your deck

The idea is generally that it cant be broken if both players do it, but Upheavals banning in most formats disagrees

Switching a creature's power and toughness twice (or any even number of times) effectively returns the creature to the power and toughness it had before any switches