Really? xD I'm glad I'm not the only one who views it this way. I've seen some comments on youtube about how cool Sleeper Agent Ajani was, but overall most people don't really talk about the lore or the characters themselves. Sure, this goes for virtually every card game, but I don't think I've ever seen people discuss the lore much. Not outside of comments like "Gatewatch suuuuuck!!!" or "wow Forsaken was poorly written to hell and back"
It's not even the first time they kill major characters, nor the first time they kill Planeswalkers.
Gideon was a major planeswalker, Dack Fayden had an entire book series dedicated to him. And Domri Rade existed I guess '-'
Same for the Mending sacrificing all their cool Planeswalkers then to stop Dominaria from going haywire.
It's really just this one character that they've established as cool, who went through a character growth that really contrasts that of normal planeswalkers we've come to know, and has since grown into his own. He was the mentor of heroes, the one character who symbolized the absolute best a Planeswalker could aspire to be. Generous, kind, fatherly, meddled when he had to, but encouraged others to fight for themselves. As opposed to "We're here, we're the Gatewatch, we're going to bust some heads".
He deserved better than this. He deserved better than an off-screen compleation, murdering people for the sake of evil (through underhanded methods, by the way) and then flaying himself. Hell he wouldn't even use ridiculous speeches to break his opponent. As much of a pragmatic Phyrexian he may be now, his speeches are corny. Ajani wouldn't have needed bark-that-he-couldn't-back-up-with-bite, because every time this guy talks, he always gets his arse handed to him immediately after. If I were in charge, I'd keep the chivalrous Ajani who fought in the name of a family he now had. Still the same speech and patterns, but applied in to the wrong thing. And have him properly win fights and earn his kills, not... this.
I get people like the cool look and the edge. Nothing wrong with an edgy evil Ajani. I could have grown to like him a bit better. If I weren't so worried for his survival, and if I didn't feel like he came out of nowhere. AND if I didn't feel like his writing was shoddy.
And especially not when he's been used for kids associations -._.- like. That's low.