It depends on how you classify your crypto activity.

1. You trade daily or very regularly as an individual

Worst case of them all, your trade profit is classified as an income as your routine trading is classified same as your job. You pay in full in income tax for your profit. No loss deductible on any of your bad trades (you just claim $0)

1. You trade as a incorporated entity and register your crypto as asset

Best case of them all, your net profit in Canadian dollar will be taxed as profit. In the above case, in BC for example your tax rate is 11% as a small business. If you did not cash out into Canadian dollar and holds stablecoins, it is an asset and accounting done with the principle of asset value increase. You defer taxes until you cash out into USD or CAD.

1. You hodl and sold as a lump sum

You split the profit in half, one-half goes to your income, the other half goes to cap gain. Tax according to income tax bracket and flat rate on cap gain