1/4 To cast a spell, you must pay MANA equal to the symbols in the top right corner of the card
5E Fifth Edition 0 - Common - English J21 #46 EMA #167 M14 #171 M13 #172 M12 #173 ME4 #153 M11 ARC #56 M10 #182 7E #245 Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Pioneer, Timeless, Vintage Alchemy, Standard
However, this can be worked around using cards like Lt Surges Strategy and Reset Stamp which, when combined with the paralysis effect done by Raichu & Alolan Raichu GX can be worked around well
(Each pack contains 10 random cards)
As a last resort compared to Tentacruel and Frosmoth, you can also consider Psyduck and Golduck , with Golduck able to dish out a whopping 70 damage for just two Energy
Historian's Boon plays well with angel-focused sagas like Firja's Retribution and Battle at the Helvault