pokemon mystery booster box PokeHEX Time Warp Includes 1 foil card and 1 booster pack Pokémon Mystery Box – SwissPokeChamps

This can put the counter on itself, so the floor is a 5-mana 3/4 flyer, which isn't terrible

It includes a rubber playmat, sleeves for cards, and a deck box

So many of the cards in the deck put +1/+1 counters on your creatures for minimal effort, and with certain other cards, those counters can stick around even if the creatures with them get removed

Ok Charizard [1999-2000] #4 (Pokemon Base Set) Details Full Price Guide: Charizard [1999-2000] #4 (Pokemon Base Set) All prices are the current market price

The aforementioned Oashra Cultivator is also a 1 drop, as is my favorite Selesnya mana dork - Avacyn's Pilgrim