View source for Draft:Two Worlds:Mana Cost

{{Two Worlds Draft}}

The Mana Cost of a spell is the amount of mana points required and used up when casting that spell. Every cost follows one of two formulas:<syntaxhighlight lang="julia">
floor(initial_cost + (level - 1) * increase)
</syntaxhighlight><syntaxhighlight lang="julia">
floor(base_cost + increase + max(0, level - 2) * increase)
</syntaxhighlight>Where:

* <code>[https://en.wikipedia.org/wiki/Floor_and_ceiling_functions floor(x)]</code> = Function, returns the greatest integer less than or equal to <code>x</code>.
* <code>max(x,y)</code> = Function, returns the greater number among its arguments.
* <code>initial_cost</code> = cost of the spell at level 1.
* <code>base_cost</code> = cost of the spell at level 1 minus <code>increase</code>.
* <code>increase</code> = amount increased every level.
* <code>level</code> = The spell's [[Spell Level]].
* <code>initial_level</code> = skill level for the spell's school of magic at which the spell is unlocked.


Spells that use the first formula include [[Firebolt]], [[Ring of Fire]], and [[Lightning]]. Here are some examples using Firebolt, which has a initial cost of 15, initial level of 1, and cost increase of 5.

* 1 card, 0 spell boosters, and with [[Fire Magic]] level 1: <syntaxhighlight lang="julia">
floor(15 + (1 - 1) * 5) MP =
floor(15 + 0) MP =
15 MP
</syntaxhighlight>

* 2 cards, 0 spell boosters, and with Fire Magic level 1:<syntaxhighlight lang="julia">
floor(15 + (2 - 1) * 5) MP =
floor(15 + 1 * 5) MP =
20 MP
</syntaxhighlight>

* 3 cards, 0 spell boosters, and with Fire Magic level 1:<syntaxhighlight lang="julia">
floor(15 + (3 - 1) * 5) MP =
floor(15 + 2 * 5) MP =
floor(15 + 10) MP =
25 MP
</syntaxhighlight>
* 3 cards, 0 spell boosters, and with Fire Magic level 8:<syntaxhighlight lang="julia">
floor(15 + (10 - 1) * 5) MP =
floor(15 + 9 * 5) MP =
floor(15 + 45) MP =
60 MP
</syntaxhighlight>
* 3 cards, 2 spell boosters, and with Fire Magic level 8: <syntaxhighlight lang="julia">
floor(15 + (13 - 1) * 5) MP =
floor(15 + 12 * 5) MP =
floor(15 + 60) MP =
75 MP
</syntaxhighlight>


Spells that use the second formula include [[Heal]], [[Summon Octogron]], and [[Summon Soul Defender]]. Here are some examples using Heal, which has a base cost of 40, initial level of 1, and cost increase of 40/7.

* 1 card, 0 spell boosters, and with [[Air Magic]] level 1:<syntaxhighlight lang="julia">
floor(40 + 40/7 + max(0, 1 - 2) * 40/7) MP =
floor(40 + 40/7 + max(0, -1) * 40/7) MP =
floor(40 + 40/7 + 0 * 40/7) MP =
floor(40 + 40/7) MP =
floor(40 + 5.72...) MP =
floor(45.72...) MP =
45 MP
</syntaxhighlight>

* 2 cards, 0 spell boosters, and with Air Magic level 1:<syntaxhighlight lang="julia">
floor(40 + 40/7 + max(0, 2 - 2) * 40/7) MP =
floor(40 + 40/7 + max(0, 0) * 40/7) MP =
floor(40 + 40/7 + 0 * 40/7) MP =
floor(40 + 40/7) MP =
floor(40 + 5.72...) MP =
floor(45.72...) MP =
45 MP
</syntaxhighlight>
* 3 cards, 0 spell boosters, and with Air Magic level 1:<syntaxhighlight lang="julia">
floor(40 + 40/7 + max(0, 3 - 2) * 40/7) MP =
floor(40 + 40/7 + max(0, 1) * 40/7) MP =
floor(40 + 40/7 + 1 * 40/7) MP =
floor(40 + 80/7) MP =
floor(40 + 11.42...) MP =
floor(51.42...) MP =
51 MP
</syntaxhighlight>

* 3 cards, 0 spell boosters, and with Air Magic level 8:<syntaxhighlight lang="julia">
floor(40 + 40/7 + max(0, 10 - 2) * 40/7) MP =
floor(40 + 40/7 + max(0, 8) * 40/7) MP =
floor(40 + 40/7 + 8 * 40/7) MP =
floor(40 + 360/7) MP =
floor(40 + 51.42...) MP =
floor(91.42...) MP =
91 MP
</syntaxhighlight>
* 3 cards, 2 spell boosters, and with Air Magic level 8:<syntaxhighlight lang="julia">
floor(40 + 40/7 + max(0, 13 - 2) * 40/7) MP =
floor(40 + 40/7 + max(0, 11) * 40/7) MP =
floor(40 + 40/7 + 11 * 40/7) MP =
floor(40 + 480/7) MP =
floor(40 + 68.57...) MP =
floor(108.57...) MP =
108 MP
</syntaxhighlight>

You can tell which spells use the second formula by checking if there's no cost change between spell level 1 and 2. For example, Heal has 45 cost at Air Magic level 1 when using either 1 or 2 cards, so it uses the second formula; meanwhile, Firebolt changes cost from 15 to 20 at Fire Magic level 1 when changing from 1 to 2 cards, so it uses the first formula.

[[Category:Magic]]