Unfortunately, the Modern format is too proactive for a slow grind
This is great for buying some time or getting a dangerous Pokmon out
Set List 01/18 Bulbasaur 02/18 Oddish 03/18 Chikorita 04/18 Charmander 05/18 Vulpix 06/18 Cyndaquil 07/18 Squirtle 08/18 Totodile 09/18 Maril 10/18 Pikachu 11/18 Chinchou 12/18 Mareep 13/18 Abra 14/18 Slowpoke 15/18 Natu 16/18 Sandshrew 17/18 Phanpy 18/18 Larvitar One would expect the contents of each booster pack to be random, and to some degree they are, but there are actually 6 different outcomes available
Then you offer opponents incentives to attack elsewhere, like with Vow of Wilderness, Bloodthirsty Blade, or bringing some chaos with Illusionistss Gambit
2 Blossoming Tortoise Another ramping powerhouse, Blossoming Tortoise mills three cards when it comes into play or when it attacks, returning a land from your graveyard to the battlefield tapped
Rares were first introduced in 1996's Mirage set, and Time Spiral introduced the super rare timeshifted cards (though these were never printed outside of the set)