Another 
-hate card for 
? No.
This looks to be much broader than an anti-
card. If the "cancel death effects" is removed, it is actually a very general anti-cc card. It will mess with far more elements than just
because it makes no mention of what cause the card to die. You get a spirit bolt no matter what. So, for instance, if
blasts a creature, they need to be prepared to lose the attack of their farenheight, lava golemn, etc. Similar for any other element. This is far from just a narrowly targeted spell like flash of light. I actually very much like this card.
Also, as much as it may seem an anti-
card, I see the need for disabling death effects since that will prevent players from massing tons of these at once. (E.g. due to plague or other mass death effects) Although I think it may be better to use "only triggers once per turn" instead.
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On another note, I would suggest making upgraded spirit bolt cost 1
to mirror holy light / flash of light.
I really do like that this simply disables attack rather than using the delay or freeze mechanism. It gives a good thematic link to sundial and makes it unique from other similar cards.
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When you say only prevents death effects on YOUR own field, does that mean that when your creatures die they wont trigger death effects, or does it mean that cards you own that trigger on deaths no longer trigger?... or both?
