go to pokemon cards TCG: Pokemon Trading Card Booster Pack You may play only 1 Supporter card during your turn The 10 Most Valuable Cards

The rest is really up to you and your bidding/investment strategy

Not the worst, of course

Yes, it may give your opponent creatures as well but you will be getting the majority of the benefit with at least two creature tokens

For example, Charizard ex will be a Darkness card with Fire attack costs and a Grass Weakness (in the TCG, Darkness types are weak to Grass to represent Bug)

With a Temur SabertoothTemur Sabertooth out, and six or more mana, two of which are red and green, you can infinitely play and bounce Zacama, each time generating an additional mana, then its up to you what to do with that infinite mana

No new cards with cumulative upkeep have been printed since 2006's Coldsnap