mtg tyvar card Magic: The Gathering - Kell Whenever one or more Elves you control attack Tyvar's Stand - Phyrexia: All

Skullclamp Theres a well-documented story that Skullclamp originally gave +1/+1, but the designers deemed that too powerful and switched it to +1/-1

That's just it, staples can come in all shapes, sizes, (and especially colors), and things really come down to a matter of preference

The #2 answer is having some sort of other non-mana-producing effect

It even has some Commander staples like Sol Ring and Command Tower, letting you try out the most popular Constructed format

These include Base Set holographics like Alakazam, Mewtwo, and Chansey

Umbral Collar Zealot is a free sacrifice outlet for 2 mana on a creature that allows you to surveil one for each artifact or creature you sacrifice to it