For this list, Ill include only cards that work when sacrificing permanents, so these are out
Each spell with overload has a target, but if you cast it for its overload cost rather than its mana cost, you can change the word "target" to "each," or what the Izzet used to call "restraint." Remember that a spell with targets can fail to resolve because its targets become illegal, but once you overload it, it no longer has targets, so it can no longer fail to resolve this way
There are many Trainer Cards and special Abilities from Pokmon themselves that can help you fetch Energy Cards from your deck
They are awful early and late game you often cannot afford the time to spend all that mana on them
lastly, his fifth alternate costume gives Diddy Kong a blue tank top and cap, resembling Kiddy Kong