When casting your countermagic is already good, getting an additional effect pushes you towards a win
Aggressive decks that play pump spells tend to operate on few lands, so it can be difficult to cast a threat and leave up much interaction on the same turn
Simic Ascendancy Like Revel in Riches, WotC keeps printing better cards that come with +1/+1 counters or interact with them, so its not hard to go off with Simic Ascendancy
P/T Number 163 Language Italiano Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (3/19/2021) An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger, but after targets have been chosen for that spell
As with all of these types of list I can only pick so many cards, especially when I have to pit them against Magic's large history of cards