dry erase token cards mtg 30x Cards, Black Golden Frame Board Game for RPG – TinkerTownGames Compatible with standard MTG sleeves and deck boxes for easy integration.FUTHARK COUNTER COMPATIBLE Erasable MTG Tokens – Set

The obvious downside is that the permanent that you get a copy of is randomized

Everything just becomes a race to a mana threshold

#2 Gotta be And These are, similarly to the OP's, two lands from the same set

Enchantment Color tag templates(None) Felidar Retreat Landfall Whenever a land you control enters, choose one Create a 2/2 white Cat Beast creature token

Later on, more than 20 years later, they would even revisit this and give it a lot more support with a Phyrexian-themed set not bad for a mechanic that was initially just meant to represent the slow death of a bug stinging you over and over again

Are you running them as synergy pieces, or generic card draw engines