When I counter a spell, I want it to feel countered, and this is as close to a traffic sign, replete with raised hand, that you get in MTG
Chaos: Whenever you roll Chaos, target artifact creature gets +X/+X until end of turn, where X is its converted mana cost
Cynthia has a simple effect: You shuffle your hand into the deck and draw six new cards
They're both widely popular and near impossible to do well
As an example, let's imagine a player has one copy of , , , and the Starting next week, however, that same player could use four copies of Opt from any of those setsthey could even mix and match the different printings
Create a 1/1 colorless Eldrazi Scion creature token with "Sacrifice this token: Add ." Instant Instant (CTRL to add secondary) Land Gemstone Caverns If this card is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it