Ideal cases for wildcards are effects with a particular cost and effect, linked abilities, or effects that interact with particular zones in a certain order
The Ruinous Powers Commander Deck Sow discord and destruction for the glory of Chaos with commanders Abaddon the Despoiler and Belakor, the Dark Master. Ive seen people put token creating instant and sorcery spells in spellslinger decks, but I like how Magnus the Red specifically ties those two themes together quite strongly
2 Kaalia Of The Vast A Triple Threat A rather unique Angel commander in that you wont likely exclusively be playing Angel creatures, Kaalia of the Vast is one of the original commander cards from when Wizards of the Coast backed the format
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs, such as emerge costs
We'll now have the opportunity to find out, as this long-clamoured-for card - the original, eponymous counterspell - is being injected into the format
Adding elements to the cards such as "First Edition," Shadowless, and graded highly through a reputable grading company increases that value exponentially, with the most expensive version of the Base Set Charizard being one of the most valuable collectibles in the world