The most notorious offender here is Drannith Magistrate , a one-generic, one-white creature that only lets you cast spells from your hand meaning any cards with the madness ability will be discarded into exile as normal, before promptly going into your graveyard
Terror of Mount Velus granting double strike to itself is similar solo damage to Drakuseth, but it makes any second threat instantly lethal, and multiples can attack together, unlike the second Drakuseth
But this should give you an idea of how to find the best cards for your deck and decide what colors you want to play
The basic question we're looking to answer is whether you should spend your hard-earned money on Secret Lairs or if you would be better of saving your Magic budget for other products
Yes, you can counter a triggered ability with specific cards that say counter target triggered ability. Regular counterspells like Counterspell only work on spells, not abilities already on the stack
Alms Collector Alms Collector promises much, delivers little