Kaalia of the Vast is unique in that it rewards playing with 3 tribes instead of just 1, and gives you a way to play the traditionally big, expensive Demons, Dragons, & Angels from your hand simply for attacking
For example, once Quantum Riddler's replacement effect has modified the "draw two cards" instruction of Decode Transmissions, Thought Reflection's replacement effect can double the resulting card draws without Quantum Riddler's replacement effect applying again
So, if Celestial Unicorn fights the next turn when it is untapped, I can then use it to block
(2025-06-06) In a Two-Headed Giant game, life gained by your teammate won't cause Aerith Gainsborough's second ability to trigger, even though it caused your team's life total to increase
Lightning is quite deadly in combat, and any damage effects played after she connects is doubled