Shadowverse

All damage greater than 4 to your leader and followers becomes 4 instead.

But it won't work against that apocalyptic spell that "damages the leader by 1 until their health is 1," right?...

Rahab
Gold Dragoncraft Follower
4 PP 2/5
Ward
At the end of your turn, this card gets +1 for each PP left.

+1 to what?... But in any case, it should be interesting.

Orthrus
Silver Shadowcraft Follower
4 PP 1/2
Fanfare: Deal 2 damage to a random enemy follower. A random allied follower gets +2/+0.

Another Cerberus, we can skip it. And the name suspiciously reminds me of Orthrus.

Candle of Prayer
Bronze Havencraft Amulet
3 PP
Whenever an amulet is played on the field, reduce that amulet's countdown by 1.
It's a small thing, but it's nice. Best friend of the seraph.

Hmm, "played" means from your hand, right? Then no, it's no better than dogmas, sisters, and sages. You still need to spend at least one turn, and you can do that without an amulet. However, this thing will sometimes be better than a seraph with Uriel – in my opinion, this is more of a drawback.
Otherwise, in combination with a seraph, it would be overpowered and an auto-win on turn eight.