[When Attacking] If this Character has 7000 power or more, give up to 1 of your opponent's Leader or Character cards 1000 power during this turn
Fast mana is constantly in debate within the community, and I can understand the reservations around it
Carnage Tyrant in particular is very hard to be removed since it cant be countered and has Hexproof and Trample, making it a serious threat and a potential finisher
3U to Foretell and cast a CounterspellCounterspell is a hefty price, but being able to break it up the cost makes it more palatable
A few crucial tech cards and stadiums will also be leaving the format, leaving fans to wonder what will replace them in the future
If Tellah is no longer on the battlefield when its ability resolves and eight or more mana was spent to cast the spell that caused its ability to trigger, the ability will still deal damage to each opponent