Countermagic : Mystic Snake, Frilled Mystic, Draining Whelk Reanimation : Karmic Guide, Phyrexian Delver, Extraction Specialist Milling : Manic Scribe, Thieves' Guild Enforcer, Sage's Row Denizen Self-Milling : Stitcher's Supplier, Satyr Wayfinder, Balustrade Spy Discard : Burglar Rat, Mesmeric Fiend, Sin Collector Goading : Insufferable Balladeer, Jeering Homunculus, Vengeful Ancestor "Gain Control" effects : Hostage Taker, Agent of Treachery, Gonti, Lord of Luxury Clones : virtually all of them, though a few are decently pricey
[Counter] Up to 1 of your [Krieg] cards gains +4000 power during this battle
Alternatively, attending local trading card events, and conventions, or visiting dedicated Pokmon card shops can provide opportunities to buy, sell, or trade Rainbow Charizard cards in person
Looping creatures while giving your opponents a very narrow window of opportunity to interact gives you an unparalleled edge in grindy games