Karn, Scion of Urza

Level Mana bonus 1-3 -1 -1 -1 -1 -1 +0 4-11 -1 +0 -1 -1 -1 +0 12-17 -1 +0 +0 -1 -1 +0 18-23 -1 +0 +0 +0 -1 +0 24-28 -1 +0 +0 +0 +0 +0 29-31 -1 +0 +0 +0 +1 +0 32-37 +0 +0 +0 +0 +1 +0 38-43 +0 +1 +0 +0 +1 +0 44-51 +0 +1 +1 +0 +1 +0 52-57 +0 +1 +1 +1 +1 +0 58-60 +1 +1 +1 +1 +1 +0

Level Deck limits Creatures Spells Supports 1-1 3 3 4 2-7 4 3 4 8-13 4 4 4 14-21 4 4 5 22-33 5 4 5 34-41 5 5 5 42-60 5 5 6

Level	Health
1-2	20
3-4	23
5-6	27
7-8	30
9-12	33
13-14	36
15-16	40
17-18	43
19-20	46
21-22	49
23-24	52
25-26	56
27-30	59
31-32	62
33-34	65
35-36	69
37-38	72
39-40	75
41-42	79
43-44	83
45-46	87
47-48	91
49-50	95
51-52	100
53-54	105
55-56	110
57-58	115
59-60	120

Abilities

{{{Number}}}: Thran Legacy
Ability Level	PW level		Effect
	6-19	4	Pick one of the next 2 cards of your library. Fetch that card and Exile the others. If it was a colorless card, your mana bonuses are increased by 1. Each mana bonus can't be raised by this ability more than 3 times.
	20-35	4	Pick one of the next 3 cards of your library. Fetch that card and Exile the others. If it was a colorless card, your mana bonuses are increased by 1. Each mana bonus can't be raised by this ability more than 3 times.
	36-49	4	Pick one of the next 3 cards of your library. Fetch that card and Exile the others. If it was a colorless card, your mana bonuses are increased by 1. If not, your mana bonus in that card's color is increased by 1. Each mana bonus can't be raised by this ability more than 3 times.
	50-60	4	Pick one of the next 3 cards of your library. Fetch that card and Exile the others. If it was a colorless card, your mana bonuses are increased by 1. If not, your mana bonus in that card's color is increased by 2. Each mana bonus can't be raised by this ability more than 3 times.

{{{Number}}}: Tolarian Legacy
Ability Level	PW level		Effect
	10-25	8	Pick one of the first 2 cards from your Exile. It gains 4 mana.
	26-39	8	Pick one of the first 3 cards from your Exile. It gains 6 mana.
	40-55	8	Pick one of the first 2 different cards from your Exile. It gains 6 mana.
	56-60	8	Pick one of the first 3 different cards from your Exile. It gains 6 mana.

{{{Number}}}: Argentum's Legacy
Ability Level	PW level		Effect
	16-29	12	Create a Karn's Minor Construct Token [8/8 with "While you control 3 or more supports this creature gains Prevent Damage."].
	30-45	12	Create a Karn's Construct Token [8/8 with "While you control 3 or more supports this creature gains Prevent Damage. At the end of your turn, if you control 2 or more supports, return the first support from your graveyard to your hand and it gains 6 mana."].
	46-59	12	Create a Karn's Improved Construct Token [12/12 with "While you control 3 or more supports this creature gains Prevent Damage. At the end of your turn, if you control 2 or more supports, return the first support from your graveyard to your hand and it gains 8 mana."].
	60	12	Create a Improved Major Karn's Construct Token [12/12 with "While you control 3 or more supports, this creature gains Prevent Damage. At the end of your turn, if you control 2 or more supports, a support you control gains 2 shield, then return the first support from your graveyard to your hand and it gains 10 mana."] on the battlefield.

Story

The Planeswalker Venser sacrificed himself to free Karn’s mind and body, but Mirrodin, a plane Karn himself had created, was lost. Grief-stricken by the fate of his world and the death of his friend, Karn travels the Multiverse, retracing his steps to ensure the Phyrexian contagion has not taken hold elsewhere. Karn is constantly searching for more weapons he can deploy against the Phyrexians—which has brought him back once again to Dominaria.