Blue normally doesnt deal in first strike at all, so why not just remove all the power of attacking creatures by playing Meishin, the Mind Cage
Wilderness Reclamation, Growth Spiral, and Teferi, Time Raveler are all up for rotation this fall however due to the increase in play from digital formats, WotC feels it is necessary to remove these cards in order to help freshen up the remaining summer metagame. Historic After the banning of Nexus of Fate, WotC felt that Wilderness Reclamation decks would fall into a reasonable place, but recently, Temur Reclamation has risen to over 10% of Best-of-Three games while maintaining concerning win rates. Similarly, decks that include Teferi, Time Raveler have exceeded 20% of Historic Best-of-Three games and significant percentages in other modes as well. Both of these cards are currently suspended and WotC aims to monitor the metagame without these cards closely to determine if they may be reintroduced to the format at some point in the future
Thoughtcast will routinely cost one mana in this shell
With just 48 events in that range, comprising about 1600 decks, we are only looking at a tiny fraction of the total number of dailies and decks that happened between 1/28 and 3/17
Such spells are not redundant with their copies, such as most counterspells, and many of these instants and sorceries can target different creatures to maximize value
Stadium Cards: These cards create field effects that benefit one or both players
