As an additional cost to play this, put a card from your arsenal on the bottom of your deck.
Prevent the next 5 damage that would be dealt to you this turn.
This costs {r} less to play for each Runechant you control.
Search your deck for a Runeblade aura with cost X or less, put it into the arena, then shuffle.
If X is 2 or more, this gets go again.
Kassai Specialization (You may only have this in your deck if your hero is Kassai.)
As an additional cost to play this, destroy X Gold you control.
Create X Cintari Sellsword tokens.
Go again
You may destroy a Gold you control rather than pay Double Down's {r} cost.
The next attack that wagers this turn gets +3{p} and overpower.
If a hero would create 1 or more tokens from a wager this turn, instead they create that many plus 1 of each of those tokens.
Go again
Instant -- {r}, banish this: Create an Eloquence token.
Arcane Barrier 1 (If your hero would be dealt arcane damage, you may pay {r} to prevent 1 of that damage.)
Blood Debt (While this is in your banished zone, at the beginning of your end phase, lose 1{g}.)