Gideon's Triumph not triggering correctly with a Gideon planeswalker in play.
Gideon's triumph should make the target player sacrifice 2 creatures that attacked or blocked this turn if you have a Gideon planeswalker in play. However, Gideon Blackblade, Gideon, Ally of Zendikar, and Gideon of the Trials did not cause this. With those planeswalkers in play, the target player was only required to sacrifice one creature.
Happened to me also in my practice game. I casted first gideon triumph and my opponent indeed sacrificed 2 creatures. i casted another one right after (yes i had 2 in hand and a gideon on the battlefield in the same time XD), and my opponent only sacrificed 1!
How can i play in competitive league if my deck suffers from bugs. Better to report here than to ask for reimbursement later
you can see that in the game log.
This happened again in another game of mine. Only one creature was sacrificed while i controlled a flipped Gideon planeswalker.
This wont happen again. Because i wont play my gideon mono white deck till this is fixed.